A new chapter in your babies' lives has begun. Your baby twins will go through rapid growth and by the end of the week they will each be about 1.5 inches long from crown to heel.
Fetuses have vocal cords by now and are capable of making some noise. Your babies' pancreases and kidneys are fully functional by now as well.
Even though chances of malformation due to external influences will be decreasing drastically, you should still take great care of yourself and the babies. Do not take any medication without your doctor's consent and avoid alcohol and tobacco.
The placenta is fully functional by now.

