Has anyone ever gotten pregnant from unprotected sex on the last few days of your period?

I took a test at 4 days late but it had been opened hours earlier and it also was my last urine at 11 at night and not FMU

I’m now 7 days late (day 42 of cycle) my cycle is usually around 35 days give or take a day or 2.

I had bloody discharge and light spotting for a few hours a few days before my projected start day of my period. I have also had light cramping in my lower abdomen but super light and it comes and goes ( cramps are usually SUPER strong) and on day 39 I had sharp pain in my lower right and left abdomen allll day. Not like cramps tho. It was like a pulling stabbing pain.