Please help 😣

So me and my bf were having sex and yes we DID use a condom. As we were having sex it started to hurt and he took his dick out and the condom was soo dry so we put lube on it and yes it was water based so it wouldn’t damage the condom. It got dry again but we kept going and then as he was cumming he pulled out and then the cum was going everywhere and we were like omg the condom broke and we were freaking out and ended up going to get plan b to be safe. I would say I took it about 30-45 minutes after he came. My period was supposed to come yesterday and it still hasnt come yet and I’m starting to get rlllly worried. I dont want to be pregnant 😣😣