6 days after the last day of my period - pregnant?

Hi everyone,

I’d like to ask for your advice. I’ve been struggling with a very long cycle for a few months now. I haven’t taken the pill for almost 1.5 years, but we do use condoms.

Over the last few months, I’ve had cycles of 39–41 days. This month, my period started on July 3rd and ended on July 8th. On the night of July 14th into the 15th (not sure if it matters, but it was already July 15th), we had unprotected sex.

How big is the chance that I’m pregnant now?
Some calculations say I’m fertile from July 13th to 17th, while others say around July 22nd to 26th. Yesterday during the day I had some stomach pain that felt like my period was coming, so I assume it’s pain from being fertile.

We already have a son who’s almost 2.5 years old. I’ve never had such long cycles before, so I really don’t know when I’m fertile.

But how big is the chance that I’m getting pregnant/already pregnant now?

Thanks in advance,

Missy