Well yes. Very very early on in the pregnancy. But it’s VERY rare. So really .. No you can’t. When a woman becomes pregnant.. as soon as she conceives .. the body sends singles to prepare our body for homing and development of baby(s). So we don’t get periods anymore , we don’t ovulate. We don’t ovulate meaning we can’t have a period. If that was possible then a woman can get pregnant and turn around 4 months into the pregnancy to ovulate have sex and conceive again so you’d have a 4 months old fetus with a new 3 week old embryo. Lol no it doesn’t work like that. When we get pregnant our body doesn’t go through it’s natural phase of PMS and ovulation during its pregnancy.