Anxious!

Okay any words of advice on how to not get pregnancy - scared every time you have sex! My bf and I uEd a condom the condom broke and we heard it the second he was about to put it in again. We quickly got a new one. He even pulled out w a condom. I was on day 1 of my fertile window and I’m convinced I’m pregnant. My period is not late. No symptoms. How does one deal w this!