Ease my mind

Okay so I know you can’t get pregnant from anal exactly but almost 3 weeks ago I had anal with my boyfriend and the condom broke during it. As soon as we heard it broke he took his dick out of my ass and we squeezed some precum into his hand. He never ejaculated there was just precum. His dick didn’t touch my vagina and didn’t go inside my vag either. My period is in 2 days I have slight pms symptoms but I’m also so anxious and impatient for my period to come. It’s the first time a condom has broke on us before. He’s not worried about it at all, and I know I shouldn’t be cuz I don’t think I could get pregnant from this but I overthink like crazy and convince myself that I am anyways. Can someone ease my mind and tell me I’m being crazy, I’d greatly appreciate it :)