<s>[INST] Hi, I take Gianvi oral contraceptive . I never have had any spotting on that, or my previous birth control ( loestrin 24fe, I switched 3 or 4 months ago). Tonight I ve been having some light pink spotting, and I m wondering if it s maybe implantation bleeding? I took a couple pills several hours later than the normal time I take them this month (about 3 hours late), so is it possible I could have gotten pregnant? [/INST] If you have been taking your oral contraceptive pills DAILY, a few hours earlier or later does not make a lot of difference. Implantation bleeding occurs when a person has conceived, but your chances of pregnancy seem slim,nay almost negligible. Chances are that this is breakthrough bleeding, however to be absolutely sure you must get a urinary pregnancy done 28 days from your last menstrual period. </s>