Chemical pregnancy/misscaried last month... trying to figure out when I ovulate ! HELP PLEASE!!

Anna • Mother of two beautiful little men
Ok so from this app below #1 I am supposed to ovoulate today but I took a ovulation test at 6pm and it was a negative I normally get a surge at 1-2 pm last month when I checked. Then on glow it says I ovulate on friday. So when do I actually ovoulate ? And will my chemical pregnancy have anything to do with this month ?