BC effectiveness

If I'm taking the BC pill everyday for a month at the same time am I safe in case semen possibly gets into my vagina? We use condoms but I would like to get on BC and he has asked me about going raw and I might let him if I have BC but he needs to pull out as well. That work? And don't be in the comments saying wear a condom cuz I already have that covered but I'm just saying what IF.