Please help me! Teenage pregnancy scare!

Hello everybody, I really need help figuring out what to do...

I had sex yesterday with my boyfriend for the first time in a few years. We used a condom, and he was only inside of me for 2 minutes at most. He did not cum. Also after using the condom, I blew it up like a balloon and we felt for any air leaking, and there was no air leaking.

As you can see this says I’m about 7 or 8 days away from my period. My app has sometimes been wrong and I won’t start my period until days or a week after the predicted period date. The circled date is the day I had sex with my boyfriend.

I’m really worried about becoming pregnant and I regret having sex because it is not worth my mental health.

Can someone please help me?

I do have a few questions, if you could please take the time to thoroughly answer them...

1. I know anytime a penis enters the vagina you can get pregnant, but what are my chances of getting pregnant?

2. If I get my period in 7 - 8 days like the app is predicting will there still be a chance that I might be / become pregnant from what my boyfriend and I did?

Thank you for reading! I’m just really scared.