please ease my mind??

SOO. i've been taking the pill for 2 years lol. and me and my boyfriend have sex regularly. BUT y'all i'm so paranoid EVERY MONTH that i'm pregnant 😅 idek why because i'm on the pill. i decided to make myself feel better we're going to start using the pill + condoms together. how safe is this? i'm only 18, definitely not trying to get pregnant because he's 16. but how effective is condoms and pills? i love sex with him but my anxiety about it always ruins it afterwards.