Nervous breakdown

On Jan 2, my boyfriend and I fooled around and there’s a chance that precum came in contact with my vagina as he was rubbing his dick against it. On Wednesday it would be 2 weeks which i read is a good time to take a pregnancy test and I’m freaking out. I have no idea which days I ovulate so I don’t know when the window starts. I have convinced myself that I’m not pregnant but I’m so scared. Just waiting on Wednesday to come, to see if I am or not. I know I might sound stupid and its my fault for letting things go too far but I’m a virgin and promise i would wait until marriage but temptation got the best of me. I’m 20 and people expect highly of me as I’m the only girl of the family and Christian. Is there a chance of getting pregnant?