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Pregnancy Information Center

Information, Symptoms, Treatments and Resources

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Your Second Trimester - Week 21

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Week 21 

 

What's Happening To Your Body

You should have gained about 10 to 15 pounds by this point in your pregnancy. Talk to your doctor if you’ve gained significantly more or less. As long as you maintain a healthy diet and stay well hydrated, you should be right on track. Also, moderate exercise is a great way to stay in shape during your pregnancy, get strong for birth and minimize pregnancy symptoms like excessive weight gain, backache and varicose veins. 

Your ankles and feet may begin swelling by the end of the day. Make sure to drink water and get plenty of rest to combat swelling. In addition, try to schedule 30 minutes or more of relaxation time in the evening where you can raise your feet to reduce swelling. 

Don’t be afraid if your belly button pops out — this is normal in pregnancy. It’s probably a good time to invest in some comfortable maternity clothes, if you haven’t already.

 

What's Happening To Your Baby

Your baby is the size of a carrot. From this week on, your baby will likely be measured from head to heel instead of crown to rump. Your baby should measure around 10.5 inches (26.7 cm) long from head to heel. At this point, your baby weighs around 10.5 ounces (297.7 grams).

Your baby’s digestive system has developed enough to start absorbing water and small amounts of sugar from the amniotic fluid that it swallows. Most of the baby’s nourishment, however, still comes through the placenta.

Your baby’s bone marrow has also developed enough to contribute to blood cell formation. Your baby’s liver and spleen have been responsible for creating blood cells until now. The liver will stop producing blood cells a few weeks before birth, while the spleen stops producing blood cells around week 30.

Your baby is also developing visible eyebrows, eyelashes and hair on his or her scalp.


Read This Next: Week 22

In Case You Missed It: Week 20



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