Pregnancy > Month-by-Month Pregnancy Guide

Mother
You are getting bigger every day, and during the fifth month you should start to feel your baby's movements, which begin as light, fluttery sensations. Your skin might darken and stretchmarks may appear on your abdomen or breasts. Your breasts may begin to produce colostrum. Your gums might bleed and you may have a congested nose. Vaginal discharge may increase during this time as well.

Baby
As your baby's muscles become stronger, he will move about more energetically, particularly when you are trying to get some sleep! His teeth are already beginning to form within his jawbone. He is about 10 inches long and weighs roughly 12 oz. He may have some hair on his head and he can clench his fists. Eyebrows and eyelashes are growing.