<s>[INST] So im on a combination birth control pill and my boyfriend and I use a condom most of the time. Around the start of this pack of pills I started cramping and bleeding and its been going on now for a week and a half with no signs of ending. Any ideas what could be up? Could I not have strong enough pills for me? [/INST] NamastheWelcome to Healthcare-MagicGreetings of the dayOccasionally women who start taking pills for first time may experience bleeding.  It's due to withdrawal bleeding due to fluctuations in hormone levels. It will regularise.  There is no indication to use higher potency pills. Take careBest RegardsDr T ShobhaMBBS MD </s>