Bad Decision Considering But Should Be Ok

I’m married and I made a bad decision this week. I was out of town working and met a guy from the home office of my company.
I was immediately attracted to him so when he invited to to dinner I accepted.
We ate at a very nice restaurant where we had a bottle of wine with our dinner. I had never given a thought to being unfaithful but when he took me back to my hotel he walked me to my room and I invited him in.
One thing led to another starting with a kiss then going to foreplay. When it was apparent where things were headed I asked if he had a condom because I wasn’t on birth control figuring he wouldn’t and I would have an excuse to back out. I was surprised when he got one out of his wallet.
The sex was very exciting lasting for an amazingly long time. Then when he said he was getting ready to nut I pushed hard to get him deep and the condom broke.
That was last Thursday evening and my period is due this coming Tuesday so it was to late to take plan b but I’m praying I was past my fertile days and I’ll be ok.