I NEED SOME HELP PLS

I really need some second opinions. My last period came late and was shorter than normal. I think I ovulated a day or two earlier than predicted. This past saturday my boobs began to get tender. This is a normal pms symptom of mine but it was way too early for my predicted period. Since then, I’ve been worried sick that I’m pregnant. I can’t tell if my anxiety is over analyzing symptoms or not. I now have a sharp pain towards my left thigh. I don’t know if this is implantation or not. I’m pretty sure I’m only two-three days off of my expected period. I plan on taking a test tomorrow morning, but does it seem like I’m overreacting? I had sex about five days before I think I ovulated. We even used a condom and double check that it wasn’t leaking. I don’t know what to think...