new to sex!

how likely is it to get pregnant if i’m on birth control, combination pill (i take it 9-10pm). i’ve never missed a pill and i always take it at that time. use condoms every time and when he knows he’s about to cum, he pulls out and cums inside the condom. (not in my vagina). thats the safetest way to have sex right or do i need to do more? im new to sex and so is my boyfriend and i don’t want any accidents so any tips would be helpful.