Your 21st Week: Baby’s Movements Get Stronger!

At 21 weeks pregnant, you’re officially in the second half of your pregnancy! Your baby is growing fast, developing tiny but important details like fingerprints and eyebrows, while you might be feeling more defined kicks and experiencing some new pregnancy symptoms.
Your Baby’s Development at 21 Weeks
Feeling Those Tiny Kicks
One of the most exciting parts of week 21 is feeling your baby’s movements getting stronger. Those early fluttering sensations are turning into full-fledged kicks and nudges. If you haven’t already, you may soon be able to feel them from the outside, meaning your partner or loved ones can finally share in the magic.
Your Baby’s Sense of Taste
Your baby’s taste buds are working now! They can swallow amniotic fluid, which carries subtle flavors from the foods you eat. While researchers aren’t sure if babies can actually «taste» in the womb, studies suggest that exposure to different flavors now might influence your baby’s taste preferences after birth.
Sucking Reflex and Thumb-Sucking
Your baby’s sucking reflex is developing, which is an important skill for feeding after birth. Some babies even start sucking their thumb in the womb—a behavior you might have spotted if you had an ultrasound recently.
Baby’s Skin and Tiny Details
Right now, your baby’s skin is still thin and wrinkled, with visible blood vessels underneath. But don’t worry—it will soon fill out and smooth over. Tiny eyebrows are forming, and even more amazingly, your baby’s fingerprints are now permanent!
Your Baby’s Size at 21 Weeks
Your little one is about the size of a mango, measuring approximately 10.79 inches from head to toe and weighing around 14.07 ounces.
Pregnancy Symptoms at 21 Weeks
Varicose Veins and Circulation Changes
As your uterus grows, it puts pressure on the veins in your legs, which can lead to varicose veins. Hormonal changes may also make vein walls relax, making them more noticeable. To help prevent or manage them:
- Keep moving—regular exercise can improve circulation.
- Elevate your legs when resting.
- Avoid crossing your legs for long periods.
- Consider wearing compression stockings for support.
Bleeding Gums and Pregnancy Gingivitis
If your gums are bleeding when you brush or floss, you’re not alone—pregnancy hormones make your gums more sensitive and prone to inflammation. Keep up with good oral hygiene and don’t skip your dental checkups. Seeing a dentist is safe during pregnancy and can help prevent gum disease.
Feeling Clumsy? You’re Not Alone!
Many expectant moms notice they feel a little off-balance at this stage. That’s because your growing belly is shifting your center of gravity. Be extra careful on stairs, avoid slippery surfaces, and wear comfortable, low-heeled shoes to stay steady on your feet.
Braxton Hicks Contractions: Practice for Labor
You might start feeling occasional tightening in your belly—these are Braxton Hicks contractions, also called «practice contractions.» They are usually irregular and painless, but if they become frequent or intense, check with your doctor to rule out preterm labor.
Heartburn: A Common Pregnancy Complaint
As your uterus expands, it pushes on your stomach, which can lead to heartburn. To ease the discomfort:
- Eat smaller, more frequent meals.
- Avoid spicy or greasy foods.
- Don’t lie down right after eating.
Weight Gain and a Growing Appetite
At this stage, many moms-to-be are gaining about a pound per week. Every pregnancy is different, so check with your doctor about what’s right for you. And don’t worry too much—your body is doing exactly what it needs to support your baby!
Pregnancy Checklist for 21 Weeks
Check Your Rings
Swelling in your fingers is common during pregnancy. If your rings feel tight, consider removing them now before they get stuck. You can always wear them on a chain as a necklace until after delivery.
Avoid Risky Activities
As your belly grows, your balance changes, making some activities riskier. Now’s the time to skip things like skiing, horseback riding, or any high-impact sports that could cause falls or injuries.
Review Your Finances
With a new baby on the way, now is a good time to reassess your budget. Look into maternity leave, childcare costs, and insurance plans. Taking care of financial planning early can help reduce stress later.
Create Your Baby Registry
If you haven’t started a baby registry yet, now’s a great time. Friends and family love to help out, and having a list makes it easier for them to get you the things you really need.
Find Ways to Reduce Stress
Pregnancy can bring both excitement and anxiety. Practicing relaxation techniques, exercising, and getting plenty of rest can help keep your stress levels in check. If you’re feeling overwhelmed, don’t hesitate to talk to your doctor or a counselor for support.
21 Weeks Pregnant Bellies
Your belly is really starting to show now, and many moms-to-be find this to be a sweet spot in pregnancy. You’re visibly pregnant, but not yet too uncomfortable. Some things to keep in mind:
- Your belly button might start to pop out.
- Stretch marks may begin appearing—moisturizing can help with itchiness.
- Clothes may start feeling snug, so now’s a good time to invest in comfy maternity wear.

Being 21 weeks pregnant comes with its challenges, but it also carries a lot of joy and wonder. Each kick and movement brings you closer to the newest love of your life. You’re doing an amazing job, and this journey is just as special as you are.