I need help !!

So my period is 2 days late I was freaking out a couple days ago and I'm a bit calmer since I been in here. Me and my boyfriend had sex last weekend with no condom but he pulled out. The fact that we had unprotected sex is what is making me think the worst........but is it impossible to get pregnant if your not ovulating please someone answer that and second I took asprin after the first day is that good or helpful...answers please 😥😥😰