I am on birth control and started the pack I'm on now at different time than I had been taking them before (changed from noon to 7:30 am) and have been taking them perfectly. Me and hubby have sex but he always pulls out way before. 11days before my period is due I starting spotting brown. (I have never really spotted before on this BC). I am now 7 days before my period is due and still having some slight brown on toilet paper and have been having very slight cramping on and off. Any thoughts on what this could be?