hello mam my sister is 6 manth pregnant she not gaining weight and jb wo karwat leti hai to pet m dard hota h kyu

A. You may even lose a few pounds. That's usually perfectly OK, as long as you make up for it later on in pregnancy. Your pregnancy weight gain should pick up in earnest, however, by the second trimester. The least amount of weight you should gain during pregnancy depends on how much you weighed before you conceived.