Need Advice Please

I know the app is just an estimate but I’m on CD 13 AF is due on July 1st - the app says I am a day away from ovulation which would mean I should BD today

I have been testing since CD9 it went up slightly 2 days ago but not high and I just tested and it’s dropping - so I know CD13 is still early but bc I get my period on the 1st i feel like it’s getting late.

My question is what should I do? Should I continue to test? BD? Or am I out this month 🤷🏽‍♀️

I can’t believe how frustrating this is