I had a misscarriage but i feel a heartbeat in my lower stomac, what could that mean?

Thin people's aorta: Thin people lying on their backs can often feel the pulsation or beat of the big artery, the aorta, in the abdomen. A fetal heart beat would not be felt though fetal movement might be in the second and third trimesters. If periods are abnormal or other symptoms of pregnancy are present, a woman should see her obgyn for pregnancy test, exam and possible ultrasound.

Agree w Dr. Yoder: I am sorry for your loss. You are likely feeling the pulsations of your abdominal aorta.