Week 21 of Pregnancy
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Second Trimester
5. The developing brain is picking up electrical signals from the baby's body about sensations such as pressure and temperature. At this stage, a baby's nervous reactions are not conscious but simply reflexes.
4. In girl babies the ovaries have descended from the abdomen into the pelvis.
3. At 21 weeks the average crown to heel length is 9.7 in (24.5 cm) and the average weight is 8.8 oz (240 g).
2. Fingernails are beginning to grow. There's no danger of the baby scratching himself, since his skin is covered in vernix, a protective waxy coating.
1. The baby is regularly swallowing the amniotic fluid in increasing amounts.
Not all women happily accept their changing body shape, even though they're overjoyed to be pregnant. But a belly "bump" doesn't have to mean frump. You've got a good excuse to treat yourself to a few attractive maternity clothes or to indulge in some pampering, perhaps by having a gentle massage. Keep up your exercise routine, because you'll feel energized and all the better for it.
You are 20 Weeks and 1 Day Pregnant
Your baby todayYour baby's movements are still based on a set of reflex actions but this is now beginning to change. As the nerve pathways develop, expand, and mature, your baby gains greater and greater control of his actions. read more
You are 20 Weeks and 2 Days Pregnant
Your baby todayThis close-up of the fingertips shows that the nail beds have formed and the nails are starting to grow. The nails have not yet hardened: this prevents your baby from scratching himself accidentally while he has no control over hand movements. read more
You are 20 Weeks and 3 Days Pregnant
Your baby todayThe eyelids are still fused shut to protect your baby's developing eyes from prying fingers and toes. Deep within the brain, connections are starting to form to link the senses to those areas within the brain that are able to process information. read more
You are 20 Weeks and 4 Days Pregnant
Your baby todayShown here is a Doppler ultrasound scan. Your doctor may use a handheld Doppler ultrasound machine to identify your baby's heartbeat; Doppler scanning can also pick up sudden movements and the whoosh of blood through the placenta. read more
You are 20 Weeks and 5 Days Pregnant
Your baby todayThe skin is less translucent now as your baby is starting to lay down fat reserves, which after the birth will help with temperature control and provide an energy reservoir for your baby to call upon when necessary. read more
You are 20 Weeks and 6 Days Pregnant
Your baby todayYour baby is now developing periods of movement and activity and periods of rest and quiet. Soon these periods will become definite cycles of activity, providing something of a daily (and nightly) routine to his movement. read more
