Fetal Growth and Development

The umbilical cord, which connects your baby to the placenta, contains three vessels: two arteries, which carry blood from the baby to the placenta, and one vein, which carries blood back to the baby. The blood in the arteries contains waste prod...

Your baby todayThis close-up 3D ultrasound view shows that this baby's earlobe is particularly prominent. The dark flecks around the ear look like hair, but are in fact shadows (although many babies have hair at this stage). ...

In a low-risk pregnancy, the abdomen is measured at prenatal visits to assess the baby's growth. The measurement in centimeters from the top of your pubic bone to the top of your uterus (the fundus) should be about the same as the number of weeks...

Your baby todayThis week, some babies open their eyes for the first time but this is a brief event, difficult to capture on ultrasound, so you may not see it on a scan. Some light is reaching your baby but he hasn't developed a sleep-wake cycle t...

Your baby todayThe coiling umbilical cord is very clearly seen in this image. The umbilical cord grows as your baby grows and will be about the same length as your baby at this stage of your pregnancy: about 13.6 in (34.6 cm). ...

Your baby todayIn the uterus, your baby's ears not only have fluid around them but also inside. This is part of the reason that he can only hear certain lower sound frequencies. Yawning may be a way to unblock the ears, and from now on your baby ...

Your baby todayThe hands are well developed at this stage, but, as can be seen here, the skin is very thin and transparent, which means the developing bones of the fingers and the blood vessels can be seen. ...

When it comes to screen time and kids, it isn't all bad news. The American Academy of Pediatrics offers guidelines on how to make screen time healthy and educational.

Your baby todayYour baby is now making regular deep breathing movements. These have been present for some weeks, but not in a sustained and coordinated fashion. These breathing movements are critical for the development and expansion of your baby...

Your baby todaySeeing your baby on a 3D or 4D scan gives you a better view, but most of the information that enables doctors to plan your care comes from looking inside your baby using 2D ultrasound, which provides the clearest images of internal...

Your baby todayAlthough your baby may be sucking her thumb, this is a very complex action that is not fully developed at this stage. For this reason, your baby is as likely to put her fingers or toes in her mouth as her thumb. ...

The umbilical cord, which connects your baby to the placenta, contains three vessels: two arteries, which carry blood from the baby to the placenta, and one vein, which carries blood back to the baby. The blood in the arteries contains waste prod...

Your baby todayYour baby is increasingly using her hands and feet to explore her surroundings. All limbs have a full and unobstructed range of movements and the fingertips especially are extremely sensitive. Most of her movements are reflex respo...

Your baby todayThe toes will wiggle and stretch just as much as the hands and fingers. Your baby is extremely flexible at this time and as likely to bring one or both feet up to her mouth as she is her hands in order to explore them with her sens...

Your baby todayThis is a side view ultrasound scan with the baby's head in the top left. Your baby appears completely human with all fingers and toes fully developed. The skin is now covered with lanugo, fine protective hair.You will probably not...

Your baby todayThis is a side view ultrasound scan with the baby's head in the top left. Your baby appears completely human with all fingers and toes fully developed. The skin is now covered with lanugo, fine protective hair.You will probably not...

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Your baby todayHere, the baby's legs are in the typical crossed-legs position. The right arm is on the right side of the image. The limbs and umbilical cord appear to be in a tangle, but the umbilical cord is filled with a jellylike fluid and doe...