Scared

So I messed up my bc during the first week of my pill pack but then took it religiously for the next 7 days. I had unprotected sex (stupid me) and took plan b an hour after because he finished inside me and I was freaking out. The night of sex was the 7th day I had religiously taken it but it was also ovulation day according to my app. I’ve been stressing like no other and I’m so scared that I’m pregnant but it’s still 2 days too soon to take a test and 4 days since we had sex. I don’t know what to do someone please help, 17 and can not have a baby!