What should i do if i had a miscarriage?

I am thinking you mean what medical help you should seek? If you were less than 8 weeks pregnant, and you are experiencing no pain, no fever or infection, it probably means the miscarriage was complete and no medical intervention is needed. A usual miscarriage will be heavy bleeding for couple of days, and continued for up to two weeks but no pain after the initial onset. If you were further along than this, you probably need to be checked out in a hospital to make sure that everything is okay. If after the first day or so you experience continued pain, a fever of any sort, tenderness in the stomach or continue to have pregnancy symptoms, this could indicate something is wrong. If in doubt, always see a doctor.