Precum

My period is now 5 days late and I am not experiencing cramps or anything I usually do before I get my period. 1 and a half weeks ago I had sex with my boyfriend for the first time, unprotected, but he didn't cum because I was too sore so we stopped so we only had sex for a few minutes. If I were pregnant from precum would I be experiencing any symptoms yet? My period is never late and I'm freaking out!