I'm a complete idiot. I'm 39 with a complete family (but single). I've met someone new and we've had unprotected sex. Please no safe sex bashing, I know, I know.
I didn't even think about it until today, when I've had horrific lower back cramps all day.
I know I should know this by now but I keep trying to work it out and get confused.
So. Period started on 3rd August. We slept together on 9th 11th and 14th. Is it possible?