how likely?

hey ladies. i am 15 years old and i may get judged on this topic but honestly i don’t care. i had sex with my boyfriend of 2 years, and we always use protection. we had sex october 26, and october 27. it happened a day after my period was done. my periods last about 6-8 days so my cycles are about 25 days to 27. i would’ve been ovualting around the time we had sex. we DID use a condom that did not break, tear. or slip. towards the end when i got off him it kind of slipped off but he didn’t cum or anything so i’m not really worried about it, and i’m pretty sure when it slipped it didn’t even go into my vagina. he didn’t not cum both times while we had sex, and the sex wasn’t very that long. the first time was a minute, and then he pulled out right away. and the 2nd time was like 2 minutes and then i wanted to get off and he never came at that time. i’m stressing over nothing right? my period is due on friday or saturday or sunday. can you ladies please help me calm down about this? thank you ❤️