Do we have a chance?

Last AF was November 29th, I took femara CD 2-6, DH and I had sex Dec. 9th, early AM. I got a positive ovulation test that night, and again on Sunday afternoon. DH got a stomach bug Saturday night, and it was still affecting him all the way to last night, so we didn’t try again.

I’m supposed to start progesterone supplements tonight, but I don’t know if it would be worth it...but I also don’t want to not take it if there’s a chance we could get pregnant.

What do you think? Take the progesterone, just in case, or save the money and skip it this month?