Plan b panic

I took plan b 6 weeks ago, a week after I bled like I was on my period (not spotting but legit was 2.5 weeks early) now I'm suppose to get my period soon (hopefully this weekend) but I'm just panicking if that was spotting or anything weird bc I am 185lb and not 175lbs like the packet says. Also not even really sure if he came inside me I just took it bc it was unprotected. HELP! I'm so nervous.