My Wife Is 4 Week Pregnant And Our Doctor Had

My wife is 4 week pregnant and our Doctor had conferred about pregnancy priscribed by Doctor had mifepristone yesterday at 9pm and she had started bleeding heavily time to time today at 10pm (approx 24hour she started to bleed )but our doctor has priscribed to take 4 mispristol after 2 days but before that heavy bleeding with cloth came is that the good sign it's working normally how long does heavy bleeding stops