Hi, Okay So I'm On Birth Control. My Period Is

Hi, okay so i'm on birth control. My period is fairly regular same time every month. i had gotten fingered really hard to the point where i bled but i got my period after i stopped bleeding from being fingered. Got my period last month no problem around the 15/17th. Im going on acutaine but i haven't started it yet & everything came back clear of being pregnant. So now im supposed to get it soon.