When Do Babies Put on the Most Weight in the Womb

Week 01 to Week 04

Calendar week one

This calendar week, you lot would have your last menstrual periods before you conceive. That means, your expected delivery appointment is calculated as forty weeks from the first day of final menstrual menstruum and this week is considered as role of your pregnancy menstruum. Your oestrogen hormone levels increase and a special kind of mucous similar substance lines your uterus and the fallopian tubes to facilitate transit of sperms into the tubes. This mucous also protects and keeps the sperms live for about 3-5 days. While you plan to conceive, fix yourself well. Avert alcohol, drugs, tobacco or whatsoever other substances that are harmful to your babe. Eat a healthy diet rich in vitamins, particularly folic acid.

Calendar week 2

You would accept released an ovum (egg) effectually this fourth dimension and if viable sperms remain in the fallopian tube, fertilisation of the egg by the sperm may take place close to end of this week. You would accept conceived and a new life starts growing within you!

Calendar week 3

During these 7 days after formulation, the fertilised egg undergoes a serial of cell segmentation beginning from breakdown into two cells, and then four followed by eight cells and then goes on dividing as it travels from the fallopian tube into your uterus (womb). Once in the womb, this group of cells appears like a modest ball (morula). This brawl of cells becomes fluid-filled (blastocyst) and towards the terminate of this calendar week, blastocyst gets embedded into the lining of your womb. This is called implantation procedure and takes well-nigh half dozen days to be completed. Once implanted, the developing embryo can access your blood supply and receive diet. Your baby starts producing a hormone chosen man chorionic gonadotropin (HCG), which prevents your menstrual periods and turns your pregnancy test positive.

Week four

Your baby which is a ball of cells just virtually the size of an apple seed is now called an embryo. It is fabricated of two cell layers called epiblast and hypoblast which grade futurity organs and tissues of the baby. Amnion and the yolk sac are ii other structures that develop this week. The amnion with its amniotic fluid envelops and protects the growing embryo. Yolk sac makes the blood that nourishes the embryo until placenta forms and takes over the part.

Calendar week 05 to Calendar week 07

Calendar week 5

Your baby that looked similar a mass of cells until now, gains a singled-out shape this week. The embryo is near half a centimetre long and appears equally a tadpole. The neural tube develops which will later become your babe's spinal string and brain. Your infant's heart and other vital organs such every bit kidneys and liver start developing. The placenta as well forms this time and your baby gets nourishment from your blood through the placenta.

Week 6

Your baby has grown to most the size of a lentil by now. The brain and spinal string are developing at a faster rate. Your baby has its facial features developing with those dark spots that transform into eyes and the pits on either side of the head make up the ear. Baby's heart starts beating around this week and center rate can fifty-fifty be detected on an ultrasound during your prenatal visit. Pocket-sized buds beetle out that eventually course your baby's hands and feet. The digestive and respiratory organisation organs kickoff forming this week.

Week 7

Now onwards your baby almost the size of a grape enters a very active developmental phase and at the same fourth dimension starts adapting to the life inside your womb. The umbilical string which acts as a linkage betwixt you and your babe throughout pregnancy has formed by now. This serves as a portal to provide oxygen and nutrition to your infant and also for waste product disposal from babe's body.

Your baby is growing at a rapid pace and all the body parts that have started forming in the earlier weeks (heart and brain) differentiate and become complex. Your baby's digestive tract and lungs also continue to develop. At the end of the arm bud that had formed terminal week, a pocket-sized mitt which looks like a paddle appears. Past this week, babe'due south face acquires a distinct shape equally facial features such equally mouth, nostrils, ears and eyes go more than defined.

Week 08 to Week 12

Week 8

Your baby measures about one and a half centimetre by this calendar week. Lot of change takes identify this week. The beautiful little fingers and toes which you long to cuddle with begin to course. Your babe can at present bend its hand at the elbow and wrist. The eyes become more evident every bit they form paint and besides eyelids course to protect the eyes. The buds that develop into your baby'due south genital organs also appear this calendar week.

Week 9

Your infant now appears like a peapod and weighs around 2-3grams. By the terminate of this week, your babe will measure upward to 2.3 centimetres in length. The tail like extension at the terminate of spinal string disappears and infant's caput grows very large compared to the remainder of the trunk. The hands have grown longer and fingers become clearly distinguishable. Infant's genitals outset to develop from the buds that had appeared in the previous calendar week. Besides, internal reproductive organs such as testes and ovaries begin forming this calendar week. Your baby may make few of its first movements in this week which can be well appreciated on an ultrasound.

Week 10

By the end of this week, your baby has crossed the embryonic period and volition be regarded equally foetus from the next calendar week onwards. The foetus measures 3 centimetres and weighs not more than just 4 grams. Your infant starts developing very fine details such equally fingernails and hair as it grows each day. The vital organs –the heart, liver, kidneys, brain and lungs accept formed completely and started their function. Tooth buds appear inside the mouth. If the foetus is male person, then its testes begin producing testosterone, the male hormone.

Week eleven

You are heading towards the end of the offset trimester. Your babe starts active movements like kicking and stretching. Your infant's fingers and toes have separated and the infant grows rapidly from now on until 20 weeks. The face continues to develop and the ears take their final location, on the sides of the head. Your baby's head seems larger and is at to the lowest degree one-half the baby's length.

Week 12

This week marks the end of your first trimester. Baby's vocal cords class this week. Your baby'south kidneys start to function as the amniotic fluid your baby swallows is passed out in the grade of urine. The optics which were on the side of the caput come closer together. Brain development continues and by the end of this week, your baby may become well-nigh 5.5 centimetre long and weigh around 14 grams.

Week 13 to Week 15

Week xiii

You have stepped into the 2d trimester of your pregnancy. You have your fully developed placenta to provide your baby plenty oxygen, nutrients and as well dispose waste material. Forth with this, the placenta starts producing hormones, progesterone and oestrogen that maintain your pregnancy. Your baby'southward eyelids get fused together in club to protect the developing eyes. Surprisingly, your infant'south unique fingerprints accept also developed by this fourth dimension. Your baby measures around seven to eight centimetres long and weighs most 23 grams.

Week xiv

During this week, very fine colourless hair develops and covers nearly of the baby'south torso. It is called lanugo and information technology usually disappears merely earlier nativity. Eyebrows also showtime growing as do the hair on the scalp. Your babe'southward genitals take also completed development. Your infant can make expressions –squint, frown or grimace and is able to grasp and suck its thumb. By now your baby'due south body starts growing faster than the head portion and measures almost ix centimetre in length and weighs effectually 43 grams.

Week xv

Your babe is now about xv centimetres in length head to toe and may weigh around 120 grams by the end of this week. The head portion may business relationship for almost ane/iii rd of the baby's torso length. If yous have been pregnant before, you may start feeling sensations of your baby's movements in this calendar week. Your baby is able to make some facial expressions and has the ability of grasping with hands and sucking the thumb. Your babe may start exploring within your womb with its picayune easily! Baby's vocal chords have also formed by now. The amount of amniotic fluid surrounding your infant likewise increases allowing it to motility around freely in the womb. Pilus continues growing on the head and eyebrows. The skeletal system and muscles go on developing due to which babe is able to motility his arms and legs.

Calendar week 16 to Week xviii

Calendar week sixteen

Your infant has grown up to the size of a pear fruit and in the following weeks there volition exist rapid growth in your babe. Your infant is able to concur its head in an cock position and can make facial expressions such as squinting and frowning. Besides these activities, your baby may too take hold of hold of the umbilical cord and start playing with it! The circulatory system and urinary system are fully functional and your babe inhales and exhales the amniotic fluid through the lungs.

Week 17

Your babe may measure upto nineteen centimetres from the caput to toe and counterbalance virtually 280 grams by the end of this calendar week. Baby'due south skin appears transparent and wrinkled as the fat layer underneath has not developed yet. The blood vessels beneath the pare can be seen and makes the skin announced majestic-red. A fine layer of hair called lanugo covers your baby'due south body and protects the tender baby skin until it is shed a few weeks earlier birth. Your babe begins exploring its ain body with the easily and there is ample amount of amniotic fluid for the baby to swim around and shift position very often.

Calendar week 18

An ultrasound scan is usually done betwixt xviii and 20 weeks during which yous may see your baby kick, move arms or even suck the thumb. Your baby's chest moves upward and down when it inhales and exhales amniotic fluid, in a similar fashion as while breathing. The ears have their final position and in following weeks your baby may mind to your voice! The middle ear basic and nerves from the brain accept adult and your baby can make out sounds of blood gushing through the umbilical string and your heartbeat. Your baby's bones which have been soft till now outset to harden or ossify during this week.

Week 19 to Week 22

Week 19

By the end of this calendar week, your baby may measure about 22 centimetre head to toe and weigh effectually 340 grams. Your baby'southward fingernails take completely formed and fingerprints can be seen engraved in their thin skin. Permanent tooth buds appear backside the principal tooth buds deep within the gums. A waxy layer chosen vernix caseosa covers and protects your baby's subtle skin from harm.

Week 20

You have completed nearly half of your journeying through pregnancy this calendar week! Your infant grows rapidly taking upwards more space in the womb. Equally your baby continues growing, you can experience more than pressure on your lungs, stomach and bladder. Your babe's skin develops into layers and becomes thicker below the vernix caseosa. Hairs and nails go on growing.

Calendar week 21

Your baby will be measuring effectually 25 centimetres from head to toe and weighing slightly less than one-half a kilogram by this week. Baby's eyelids remain fused but the retina of the heart has formed completely. Eyelashes and eyebrows have formed. The hair follicles develop pigments that give your babe'south hair its colour. At this stage, your baby lies in a crossed position with anxiety towards one side of your tummy and head on the other side. Bone marrow has now developed well plenty to accept over the production of blood cells from the baby's liver and spleen.

Week 22

Your infant looks more proportional and weighs around 430 grams and virtually 27 centimetres from caput to toe. The first tooth buds have appeared in the infant's gums. Past the stop of 22 weeks, baby'south nervous arrangement develops completely and the connectedness between encephalon and spinal string matures. Your baby is now able to recognise calorie-free, audio and feeling of touch, warmth and pain. Taste buds have begun forming on the natural language. Baby's reproductive system too continues developing. The testes starting time descending from the abdomen if information technology is a baby male child and in girls' uterus, ovaries and vagina would have developed.

Week 23 to Week 25

Week 23

You may detect that your infant tends to be more active this week, particularly during the fourth dimension when you are resting. The baby adopts a singled-out pattern of slumber though they slumber for most of the time. By now, your babe may measure up to 28 centimetres and counterbalance approximately 600 grams. A fatty layer starts forming in betwixt the muscles and skin and covers the blood vessels giving a meliorate skin complexion.

Week 24

At 24 weeks, babies will have increased breathing patterns. A substance chosen surfactant is produced in the baby'southward lungs and lines the lungs to help the baby breathe later it is born. Your baby may counterbalance more than than 600 grams past at present and measure up to 30 centimetres in length. Baby's skin is very thin and delicate and has very footling amount of torso fat.

Week 25

Your baby can now hear and recognise your voice and be calmed by listening to diverse types of music. Eyelids tin can open; your babe can fifty-fifty blink and react to bright light. Your infant is about 33 centimetres in length and may counterbalance near 800 grams. Babe's movements become more than regular and you may observe infant has resting and agile periods.

Calendar week 26 to Calendar week 28

Week 26

Your babe' skin may be wrinkled though the trunk weight is almost 907 grams. Infant will steadily gain weight in the following 14 weeks. As the nerves in the ear have adult completely, response to sound becomes more than consistent. Babe'south brain likewise develops intensely as babe grows at a rapid rate. Your baby continues to have small breaths of fluid surrounding it.

Week 27

In the 27th week of pregnancy, your baby weighs about 1100 grams and measures 37 centimetres. Allowed organisation develops in your infant as your natural antibodies pass into the infant through the placenta. Your baby is at present able to coordinate the 'suck and consume' action which is essential for feeding after birth. The ability to distinguish light from dark also develops by now. Your baby will nearly appear the style she is going to await at birth except that she is thinner and smaller.

Week 28

By the end of week 28, your infant may measure about 38 centimetres from head to toe and weigh slightly over 1000 grams. In this week your baby can open up its eyes and turn head towards a continuous vivid source of light from outside. The layers of fat continue to eolith and hair growth too continues. The baby's brain folds and grooves also develop and expand.

Calendar week 29 to Week 33

Calendar week 29

The third trimester begins from the 29th week and lasts till birth that is effectually 40 weeks. Your baby weighs near 1350 grams and may be around xl centimetre in length. Baby's brain increases in size and becomes more circuitous. The pupils in the baby's eyes can react to lite and your baby tin focus without much difficulty and view dim shapes. Your baby'southward movements continue to be more active and in example you discover decrease in movements, consult your doctor.

Calendar week 30

Your baby volition go on gaining weight rather than growing in length from at present onwards. Your infant may weigh around 1400 grams and go along depositing fat layers to gain weight. A special kind of fat called dark-brown adipose tissue gets deposited which helps to regulate newborn infant'south body temperature and serves as of import source of rut production afterward nativity. About 1 litre of amniotic fluid may environs your baby now, but its level decreases as babe grows. Your baby'southward lungs are fully adult and babe may repeatedly motility the diaphragm imitating breathing movements. Your baby may as well go hiccoughs which are felt equally rhythmic jerky movement within your womb.

Week 31

Your babe now weighs around 1700 grams and looks slightly chubby. The head to toe length of the baby would exist nigh 43 centimetres. Your baby's lungs produce more and more amounts of surfactant, a fatty liquid that keeps the lining of the lungs moist and efficient enough for breathing. The 'suck and swallow' action necessary for the baby to feed subsequently birth gets fully coordinated past the end of this calendar week. Your baby may swallow some amount of amniotic fluid and also pass several cups of 'urine' through bladder back into the amniotic fluid around it. You may feel your baby does not make as many movements as before, but this is because of lack of space in the womb as baby grows bigger.

Week 32

Your baby volition have pilus on the head, eyelashes and eyebrows evident past now. The fine pilus that had covered baby'southward torso from the second trimester disappears, only some hairs may persist at nascence on the back and shoulders. Your infant keeps practising breathing movements by inhaling amniotic fluid and exercising the lungs! If you lot are carrying a baby male child, his testicles descend from the abdomen into the scrotum.

Calendar week 33

Your babe will plough around and be in a 'head down' position until birth. Baby'due south movements may alter into stretches and twists equally it grows bigger and in that location is relatively less space to movement around in the womb. Your baby will weigh about 2100 grams and mensurate approximately 45 centimetres in length. During the remaining half dozen weeks, the chief task for your baby is to grow bigger past gaining weight and to boost the allowed organisation with your antibodies. Now, your baby's brain has billions of well developed nerve cells which assistance your baby coordinate with the in utero environment past senses of hearing, sight and touch on. Your infant will be able to distinguish different flavours, whether sugariness or sour! Your babe is at sleep most of the times and may fifty-fifty experience dreams!

Week 34 to Calendar week 36

Week 34

At 34 weeks, fat layers go along to eolith and your baby weighs around 2200 grams by now. Your infant's nervous system continues to mature and the lungs are about fully developed. You can even talk to your baby as the hearing ability is fully developed. The fine hair (lanugo) has fallen off only the waxy covering on your baby'southward skin, vernix caseosa becomes thicker.

Calendar week 35

Your baby'south expected commitment engagement is fast approaching and your infant is now in normal proportion and plump! Your infant could weigh effectually 2600 grams and measure upto 47 centimetres head to toe by this calendar week. Now onwards the overall growth of your infant becomes deadening but weight proceeds increases considerably to up to approximately 230 grams per week. From this week, the nearly rapid weight proceeds period begins and fatty deposits throughout baby's body particularly around shoulders.

Week 36

Your pregnancy completes full-term by the cease of this week and you could give nativity to your baby whatever fourth dimension from now! Your baby may weigh about 2700 grams and you may feel increasing force per unit area in the lower part of your abdomen. Your baby's cheeks become chubbier which adds to the fullness of your baby'southward face. While your babe's head is in the pelvis, the skull bones may also move in relation to ane some other (molding). It facilitates easy passage of your infant through birth canal.

Week 37 to Calendar week xl

Week 37

Your infant may weigh about 3000 grams and measure about 48.5 centimetres head to toe length. Your babe is regarded as 'full term' or being on time if built-in later on this week. The thick white layer on baby'southward skin (vernix) remains, but the fine hair roofing the body, lanugo would accept disappeared by this week. However, fat continues depositing at the rate of xiv grams a day!

Week 38

You are simply two week abroad of holding your little one in your easily! Though infant's growth has slowed downwardly, fatty still accumulates. Waste matter substances begin collecting in the baby'southward intestines. Dead skin cells, intestinal cells and lanugo hair pile up to grade the light-green-black meconium, baby's first bowel movement.

Calendar week 39

Virtually all of the vernix coated on the baby's skin has disappeared but in that location may be some remaining in the armpits or groin areas. Your baby's breathing exercises usually stop almost 24-48 hours prior to showtime of the labour. About 75-100 ml of amniotic fluid remains in the baby's lungs and hormones released during labour initiates assimilation of fluid from the lungs into the blood stream. Umbilical string may become entangled around babe's neck sometimes, in this case a Caesarean section would be required if it causes problems.

Week 40

Later much of expectations and preparation, yous may welcome your baby this week. Your baby at term may counterbalance in the range of 2800 grams to 4500 grams and measure somewhere around 46 to 56 centimetres. Your newborn may have slight variations such as misshapen caput, vernix coating, skin discolourations, dry out patches or rashes. All these are quite normal and will resolve in few days.

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Source: http://www.monashobstetrics.com.au/baby-growth/