I dont know what to think

If I used protection (condom) from the beginning to end of intercourse and even made him pull out before he ejaculates, and checked everytime to see if there was a leak or the condom was broke every time. What are the chances I could be pregnant? I am really bad anxiety so before my period I always get a bit stressed and I end up making it come late, I have been feeling cramps which I usually get before my period and my boobs l hurt yesterday. Besides that I feel totally normal so I really don’t know if I should really be worried, my boyfriend says we are good and it’s just my anxiety but I just need someone else’s opinion to put my mind at ease. Pls help