Is my stomach pregnant in the second trimester? In fact, theoretically speaking, pregnancy is actually the emergence of the pelvic cavity. The pelvic cavity usually comes out after 12 weeks, that is, after 3 months, and two months, that is, 60 days, should not be enough to show pregnancy. However, in some people, the change of estrogen and progesterone after pregnancy causes a more obvious change in body shape, and some people will be obviously fat and plump, so some people may appear to be a little plump. The so-called obvious pregnancy refers to the uterus out of the pelvis, should be after 12 weeks, two months should not be too far.