Losing My Virginity

So it was my boyfriend and I’s one-year anniversary three days ago and we decided that it was going to be the night we had sex for the first time. I have always had a fear of sex up until recently because of a past experience I had with a guy who wasn’t so nice to me. I’ve been on birth control since December and take it religiously (usually between 5:20-5:30 p.m). We also used condoms and there was only penetration for about 5-10 minutes. I’m still feeling a bit of pain in my stomach but nothing too overwhelming, and my period is supposed to be due tomorrow. I’m just paranoid about pregnancy because my boyfriend and I both agreed that we do not want kids at a young age. This time I’m actually hoping my period comes even though I know there’s no chance I could be pregnant lol. This app I also says I have a low risk. I should be okay, right?