Sex+Birth Control= Prgenant?

Me

Hey guys, just curious: has anyone had sex without a condom, while on the pill, and gotten pregnant? With pretty perfect use of the pill, my research says it’s very difficult to get pregnant while on the pill. I want to hear anyone’s thoughts/ experiences where they may have been scared they were pregnant even though they took the pill perfectly. I’m going through it!!! Need to calm my nerves and anxiety about sex.