TTC after miscarriage

Brittany

I just recently went through a miscarriage. I bled for three weeks from start to finish. I just finished bleeding on Sunday. Mentally, I am ready to start trying but I'm confused on when ovulation would be. According to the app when I put in all the time I was bleeding, it shows I am ovulating right now... I don't feel like I am though. What's the best way to know? Ovulation test? Check my cm?