What Foes a Baby Look Like at 12 Weeks Old
Slideshow: Fetal Development Month by Month
Your Baby's Growth: Conception to Nativity
Yous're pregnant. Congratulations! Are you lot curious how large your developing baby is, what your infant looks like as information technology grows inside you lot, and when you'll feel it move? Take a peek inside the womb to come across how a baby develops from month to month.
Conception
Fertilization happens when a sperm meets and penetrates an egg. It's also called conception. At this moment, the genetic makeup is complete, including the sex activity of the baby. Within nearly three days after conception, the fertilized egg is dividing very fast into many cells. Information technology passes through the fallopian tube into the uterus, where it attaches to the uterine wall. The placenta, which will attend the baby, also starts to form.
Development at 4 Weeks
At this point the baby is developing the structures that will eventually form their face up and cervix. The heart and blood vessels continue to develop. And the lungs, stomach, and liver offset to develop. A home pregnancy exam would bear witness positive.
Evolution at 8 Weeks
The infant is now a footling over half an inch in size. Eyelids and ears are forming, and y'all can see the tip of the olfactory organ. The arms and legs are well formed. The fingers and toes grow longer and more singled-out.
Development at 12 Weeks
The baby measures about 2 inches and starts to make its own movements. Y'all may start to feel the acme of your uterus above your pubic bone. Your doctor may hear the baby'south heartbeat with special instruments. The sex organs of the infant should start to go clear.
Development at xvi Weeks
The babe now measures about 4.3 to 4.vi inches and weighs about 3.5 ounces. You should be able to feel the tiptop of your uterus virtually 3 inches below your umbilicus. The infant's eyes can blink and the centre and blood vessels are fully formed. The infant'due south fingers and toes accept fingerprints.
Development at 20 Weeks
The baby weighs about x ounces and is a little more than half dozen inches long. Your uterus should be at the level of your belly button. The infant can suck a pollex, yawn, stretch, and make faces. Soon -- if you haven't already -- y'all'll feel your baby move, which is called "quickening."
Fourth dimension for an Ultrasound
An ultrasound is usually done for all significant women at 20 weeks. During this ultrasound, the md will make sure that the placenta is healthy and attached normally and that your infant is growing properly. You lot tin can come across the infant'due south heartbeat and movement of its body, arms, and legs on the ultrasound. You tin normally observe out whether it's a boy or a daughter at xx weeks.
Shown here is a 2D ultrasound (inset) contrasted with a 4D ultrasound, both at 20 weeks.
Development at 24 Weeks
The baby weighs about ane.iv pounds now and responds to sounds by moving or increasing their pulse. You may notice jerking motions if they hiccup. With the inner ear fully developed, the babe may exist able to sense being upside down in the womb.
Evolution at 28 Weeks
The baby weighs well-nigh two pounds, 6 ounces, and changes position often at this point in pregnancy. If you lot had to evangelize prematurely now, there is a expert take a chance the babe would survive. Ask your md almost preterm labor alert signs. Now is the fourth dimension to register for birthing classes. Birthing classes prepare you for many aspects of childbirth, including labor and commitment and taking intendance of your newborn.
Development at 32 Weeks
The baby weighs most 4 pounds and is moving around ofttimes. The baby's skin has fewer wrinkles as a layer of fat starts to course nether the pare. Between now and commitment, your infant will gain upwards to half their nativity weight. Ask your physician how to do a fetal movement chart. Call back about breastfeeding. You may notice a yellowish fluid leaking from your breasts. That is colostrum, and it happens to get your breasts gear up for making milk. Nearly women get to the medico every two weeks at this stage of pregnancy.
Development at 36 Weeks
Babies differ in size, depending on many factors, such as gender, the number of babies being carried, and size of the parents. Then your baby'south overall rate of growth is every bit important as the actual size. On average, a infant at this phase is almost 18.5 inches and weighs close to half dozen pounds. The brain has been developing speedily. Lungs are nearly fully adult. The head is ordinarily positioned down into the pelvis by at present. Your baby is considered at 'term' when they are 37 weeks. They are an early term baby if born betwixt 37-39 weeks, at term, if they're 39-forty weeks and late term if they're 41-42 weeks.
Birth!
A female parent'south due date marks the terminate of their 40th week. The commitment date is calculated using the beginning solar day of their last menstruum. Based on this, pregnancy can last between 38 and 42 weeks with a full-term delivery happening effectually xl weeks. Some post-term pregnancies -- those lasting more than than 42 weeks -- are not really late. The due date may simply not be accurate. For safety reasons, most babies are delivered by 42 weeks. Sometimes the dr. may demand to induce labor.
Source: https://www.webmd.com/baby/ss/slideshow-fetal-development
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