slightly paranoid

I shouldn't have to be paranoid about this. I had diarrhea last Thursday at 11am. It wasn't severe diarrhea, it was loose poop but idk how many drops there were because it was covered in brown water. 
Anyway, I had taken my pill last Wednesday night at my regular time (10pm) so the diarrhea occurred 13 hours later. I had unprotected sex later in the day and he came inside me. I should be completely fine, right?  The pill would have been completely absorbed into my body?  I don't want to deal with a baby yet. I'm on the progesterone only pill.