Answers PLEASE IM BEGGING YOU

I have finished my Provera pills & I’m currently on my 5th day of bleeding. My OB wants me to start taking Clomid on the 5th day of bleeding. But my period is still heavy & I’m afraid if I start taking Clomid now that I won’t stop bleeding & I won’t get a chance to either ovulate or still be bleeding while I’m ovulating. It probably sounds stupid but I have literally never taken anything like these before & never had to. And I have googled & googled & can’t really find any answers. Will taking Clomid make my period come to an end so I can ovulate ? I’m really worried that I won’t stop bleeding & won’t be able to have sex & get pregnant. HELP!!