This is my third month taking birth control pills. I am on my last active week and I've started to experience a little of light brown spotting on random days. Next week is my placebo pills. I do not think it is a pregnancy symptom because i take birth control pills, he uses a condom, and he pulls out. I think the way I could only get pregnant if their was sperm on his hands?is that possible? I just got Scarlet Fever and have been taking antibiotics. I haven't had sex since I started the antibiotics. I am guessing the antibiotics might be messing with the birth control pills which is causing the light brown spotting? Is that possible?