I started taking birth control two months ago and I just finished my second pack. I was late with my period when I finished the first pack but I had some spotting and started my normal period a couple days later. This month is the same deal but no spotting yet. My boyfriend and I do use condoms during sex when he wants to ejaculate, after that we're done and don't have sex again for about a day. I don't believe it's pregnancy since we have been careful. What I was wondering is if the hormones in BC is affecting my late period.