Any thoughts why?

Sydney • Fiancé to Cory 💍 Soon to be mommy to Myla Peyton Williams 🤰🏼due MAY 1st

I can’t figure out when I ovulated. I keep getting pretty close or positive tests. My periods are irregular and this month it only last 3 days. I took a ovulation test the day after it ended which was 3/9 and got a positive. I’ve taken a pregnancy test and it’s Negative 😑. Any thoughts ?