Medicine to start up miscariage..:(

my miscariage didnt happen natrually. My Dr gave me medicine to start it, just wondering if anyone else has taken it, how long did it take you to bleed heavily? Iv taken two doses of it and im not bleeding heavy yet... I really dont want to have surgery just want the medicine to clean me out..

also does the medicine that makes it start up make your body less likely to have healthy babies later? soo worried. I should have asked these questions at the dr but i was in shock...