I need advice...

Hey ladies of eve. I am in a monogamous relationship and I am sexually active. Well, i started birth control on June 22nd and I am on one of those 24/4 pack with 24 active pills and 4 inactive ones. I got my withdrawal Between July 17th-22nd and on the 20th I started my second month of bc and on the 23rd I had sex. Well during the first week of July I was away to this camp and I changed the time of my pill to 11 instead of 10 but one night I didn't take it until the next morning at 8. Not technically late nor missed. But I also did this another day as well I think in the 3rd week of pills were I took it the next morning. Well when I had sex at first it was without a condom on but then he put one on. He finished in the condom both times cause we went twice. My question is though if I kinda screwed myself over with the pills and having kinda unprotected sex? I took a plan b 44hours after the incident but idk if it was even necessary or I should be okay? The unprotected sex only happened in the beginning before he finished and after that we made sure there was a condom when there was contact. I just don't know if I'm gonna become pregnant because I have all these fears and it causes me to fight with my bf because of them and I want to not be scared or worried every time we have sex because I love my boyfriend and I love when we're intimate but I hate how nervous I get. Also it's this whole idea of getting pregnant off of precum, idk how that works bc I hear different things all the time and I'm trying to get educated. Thanks for reading and helping!