Plan b gone wrong?

Basically I had to come off the pop pill two months ago for health reasons, last month 2 days before i was due on my boyfriend and I had unprotected sex because we had no condoms. He didn’t finish in me BUT he did reinsert without cleaning up.

That morning we went to get the morning after pill, where the pharmacist told me I was in a relatively safe place in my cycle but to take it as precaution. I was 4 days late for my period that month. I thought this was usual, as it was my first month off the pill I didn’t expect to come on with my usual cycle.

Fast forward to this month, I have had my usual pms symptoms at the usual times but I am currently 7 days late having not had unprotected sex since. I need some words of wisdom because ya gal is stressing to the point of tears 😭 fretting about what’s best to do!!! TIA