Pregnancy scare

Hey guys! I missed my period in December, I was supposed to get it on the 25th. I didn’t. On the 30th I had sex with my boyfriend. We used protection for the first round but not the second, he pulled out , but still it’s as if we hadn’t used anything 🤦🏻‍♀️. I honestly thought my period was just going to be late because I have a very irregular period, and I got it twice in November. Now I’m really starting to worry because I’m supposed to get it on January 24th and I have no period symptoms. I have taken 3 pregnancy tests, for every week of January, and one exactly 13 days after having sex. At this point I don’t know what to do and my mom really isn’t someone I can talk to about this. I would truly appreciate some advice. Please. I know I was stupid and immature before those comments start :( ps. The pregnancy tests all came out negative!