21 Weeks Pregnant ─ Pregnancy Symptoms

You Have Reached the Halfway Point of Your Pregnancy! Starting Around the 21st Week You Will Have the Option to Know the Sex of your Baby.

139 DAYS TO GO. . .


Back Pain
54% of women experience back pain as a symptom during week 21 of pregnancy. More >>
58% of women experience fatigue as a symptom during week 21 of pregnancy. More >>
42% of women experience headache as a symptom during week 21 of pregnancy. More >>

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.

Pregnancy 21 weeks pregnant fetus development


The Fingernails & Toenails are now growing but will not harm your baby because of the vernix caseosa, a protective coating on the skin.

The Eyelids are now fully developed but still closed.

Baby Fat has started to cover your baby's body.

The Digestive System is processing amniotic fluid as your baby swallows regularly. A sticky black substance, called Meconium, is accumulating in your baby's bowel and will show up during the first diaper change.
Week 21 baby fetus size mango
Fetus Size
Your baby is about the size of a mango during week 21.

LENGTH: 10.68 in / 27.1 cm
WEIGHT: 12.9 oz / 365.7 g

View Weekly Growth Chart >>

Your prenatal appointments will become more frequent in the second half of your pregnancy. Even if you are in good health, and your baby has been thoroughly assessed at the 20-week ultrasound scan. It can be reassuring to have these regular checkups with the doctor.

Your developing baby is becoming more responsive and aware every day as his nervous system begins to work more effectively. By this stage, your baby can use his senses and recognize the sensations of light, pressure, pain, and temperature. Sound is thought to be the first sense to develop, although taste buds are at least present on the tongue from as early as 10 weeks.

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