Burning sensation in uterus

Hey guys, so maybe someone can like help me out... I’ve been trying to conceive for about a year now with a miscarriage in March. Anyhow, not every month but often enough to take notice shortly after ovulation by 3-5 days I get a burning sensation in my uterus. Does any body else? Or does any one know why this happens? After my miscarriage I didn’t track my ovulation so the past 4/5 months I’ve been having sex on the wrong days however after I starting tracking and having sex on the “right days” last month and this month I’ve been having a burning sensation... and it’s never bad, or last more than a day or two but I would like to know why.

TIA