Am I Just Paranoid?

So my boyfriend and I just had actual sex for the first time a couple days ago. I am not on birth control, and we didn’t use a condom. I feel so dumb, but it just kind of happened and I didn’t consider the paranoia or consequences I could potentially face. He did not cum inside me, he pulled out and came on my stomach I’m pretty sure, I felt it and I saw some of it. Then I went to the bathroom to clean up and pee (because you’re always supposed to be after sex) and there was cum around my vagina, but it didn’t look like his, it looked like it was probably just mine. One thing to note is I have not told my mom or anybody besides my friends that I am sexually active, and I have never been to a gyno or anything, I’m fairly new to it all and I am so scared, I have a rare disorder that I am not gonna go into detail about but I will most likely not be able to support a child and it would alter my health severely and could be potentially fatal. I feel so stupid, I am probably just paranoid. <a href="https://play.google.com/store/apps/details?id=com.glow.android.eve">Eve</a> says my period is supposed to come in 2 days so i’m hoping it does. Is it possible that sperm could have gotten in or close to my vagina ?? God I’m so paranoid :(