Positive ovulation test 3 days before period?

Judith

I’ve heard pregnancy can show up on ovulation tests sometimes, though my pregnancy tests haven’t picked anything up yet (I’m 10/11 DPO).

With my son I had a BFN followed by a positive within 30 seconds two days later. I’ve since had 1 chemical pregnancy and 1 miscarriage so I am hoping this could be an indicator.. Does anyone have any idea if this theory is true?