late period

I'm 3/4 days late on my period and i had sex almost right after my last period like a month ago and we used protection and i'm pretty sure i felt him pull out. He told me there was no rips in the condom and i didn't see any. I'm looking for comfort or any opinions. I haven't gained any wait and i have been getting some cramps and sore boobs but no period. could be stress???? helpppp