If I have been on birth control for 2 and a half years now and accidentally skipped two pills consecutively during end of week 2/beginning of week three of my last pack and have unprotected sex at the end of week one of my new pack which would be the day before my \"ovulation day\" according to my cycle. Should I be concerned? Also I take ampicillin for skin conditions and have been on it for 4 years now. Does this also affect if I should be concerned?
Hi, thanks for using Chat Doctor Some antibiotics can affect the function of oral contraceptives, but this mainly occurs with anti microbial such as griseofulvin and vitamin. Ampicillin would not affect the efficacy of the contraception. Oral contraceptives would not be effective if some doses are missed. You may want to consider a pregnancy tests. These can detect pregnancy by day 11 to 14 after conception. I hope this helps