Dr. Shubhi GuptaContent verified by Dr. Shubhi Gupta
Second Trimester
Ultrasound image at pregnancy week 21
Pregnancy week 21

Week 21

19

Weeks to go!

Your baby is about the size of a mango and is gaining weight quickly. Swallowing amniotic fluid helps the digestive system practise, and movements are usually easier to notice now.

Weight

300g

Length

16.4 cm

Days Left

133

Did you know that your baby's stomach is now capable of absorbing most nutrients from the amniotic fluid (Amniotic fluid is a clear, slightly yellowish liquid that surrounds the fetus during pregnancy? It is contained in the amniotic sac. It is a protective layer and helps in bone growth and lung development) he's swallowing? - When your baby swallows a bit of amniotic fluid for nutrition and hydration, he's also practicing swallowing and digesting—skills he will need when he is born - Some experts say that by this week your baby has developed taste buds too - so chances are if you eat cake, your baby's going to get a taste of it as well Here are some of the changes that are happening during week 20 of your pregnancy: - 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 - Fingernails are beginning to grow. There's no danger of the baby scratching himself, as his skin is covered in vernix, a protective waxy coating - In girl babies, the ovaries have descended from the abdomen into the pelvis - At the 20th week, the average baby size is 26.7cm (10.5in) and the average weight is 360g (12.7oz) - The baby is regularly swallowing the amniotic fluid in increasing amounts - Now your baby should be about 8-10 inches tall and would weigh around 350 gms - By now you should be feeling your baby's movements, which the doctors refer to as 'quickening'. That movement actually feels like butterflies fluttering inside your tummy Note: Most of your baby's nourishment is still coming directly from the placenta (The placenta is an important organ in the uterus of a pregnant woman that plays a crucial role in pregnancy. The main function of the placenta is to supply the baby with adequate nutrition).

Expert Advice

Reviewed by: Dr Sangeeta Malhotra, Medical Superintendent, CGHS Maternity and Gynea Hospital, R. K. Puram, Delhi

"Second trimester is the important period in a pregnant woman's life. If you're in this phase, keep a check on vaginal bleeding. Most women think vaginal bleeding is normal, but sometimes it can be a cause for concern. Never take it casually. Rush to your doctor immediately to rule out any complications."

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