Pregnancy Week 21 – Weekly Symptoms & Tips

You’ve finally made it past the half-way mark! You now have fewer weeks left than you’ve already completed in your pregnancy. With 21 weeks down, you should only have about 19 weeks left before you deliver the new addition to your family!

This week, your baby is about the length of a carrot.

Your little one is growing fast. At 21 weeks pregnant, your fetus should be about 10.5 inches in length and should weigh approximately 11 to 12 ounces. You still have a few months to go, which means your baby will be packing on a lot more weight from here on out.

Lots of space makes it fun for your baby to move around, do summersaults and kick you. This is right around the stage where fetuses become sensitive to touch. This means, if you apply pressure to your belly, they might move around in response to it.

Your baby may also be keeping you up at night by constantly moving around. You should feel it moving around quite a lot at 21 weeks pregnant. Don’t worry – lots of movement is a sign that your child is healthy.

Your Baby’s Development

Your baby develops faster than before during the third trimester. Visible changes are happening daily now. For instance, at 21 weeks, your baby should now have permanent fingerprints. These fingerprints will remain the same their entire life.

As mentioned a little earlier, your baby should now be moving and kicking like their getting ready for ninja school. You may even start to notice their daily routines. Yes, that’s right – fetus’ also have regular sleep/wake routines. If you’re lucky, your baby will move and kick during the day and sleep during the night. However, they tend to have numerous naps for short durations, which means you’ll likely have many sleepless nights as your child moves around in your belly when you should be sleeping.

Another interesting development around this stage is your baby’s eyebrows. At around 21 weeks, your baby’s eyebrows should begin growing out.

Your Symptoms

While your baby is developing rapidly, your body and symptoms may also begin to change a lot. You may also notice your belly growing much faster than it did during the first and second trimester.

Stretch Marks

As your child begins taking up more and more space inside of your uterus, the skin on the outside of your body stretches. This has been going on for months, but at 21 weeks, your baby is growing much faster than before and is really beginning to take up a lot of space. If you haven’t already begun, you will certainly want to apply stretch mark cream to your belly and thighs. Along with stretch marks, you may also notice Spider Veins, which look like the tree roots.


You’ve probably been battling with indigestion or heartburn for a few weeks already. However, it will only get worse. Try to avoid eating greasy foods or spicy foods, as they tend to worsen the symptoms of indigestion. Also, try to avoid drinking soda or carbonated drinks. If the indigestion is unbearable, speak to your doctor about heartburn options during pregnancy.

Braxton Hicks Contractions

No, you aren’t about to go into labor. Those contractions that you may have been feeling are actually called Braxton Hicks contractions. These temporary contractions are nothing to worry about and they should go away on their own within a few seconds or when switching positions. If they don’t go away, speak with your doctor about them immediately.

Accidental Leaks

Your body is slowly preparing to feed your child once they are born. This means your breasts are forming their milk ducts, which will be fully formed by the end of this trimester. However, even though they aren’t yet fully formed, you may experience some “leakage” from time to time. It’s a good idea to carry a few tissues with you everywhere you go, just in case some milk wants to escape.


Try to spend a lot of alone time with your partner. The next few years, especially the first months after your baby is born, will make it difficult for you to spend quality alone time together. Make the most of it now – in about 4 months, your relationship will evolve into something completely different.

Don’t forget about your skin. It’s much easier to prevent stretch marks by using using lotions and oils now than it is to get rid of stretch marks once they appear.

If you haven’t already done so, set some time aside with your partner to think of baby names you like. Try to narrow it down to about 5 to 10 names per gender. You still have a few months to go, so you don’t need to settle on just one name right now.

Have you already picked a baby name?

Share it in the comments below!

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