Am I just paranoid?

Condom broke about a week ago, but he didn't finish inside me - 7 days before period and on a low risk day. I've been having my usual PMS cramps but have been super, super stressed thinking about it all.

He and I hadn't fooled around for two days prior to the incident and he said he hadn't masturbated either. The only time he came was after he'd pulled out and I noticed the condom broke.