Ovulation after early miscarriage

MC
I've ben trying to conceive for a year now and had a positive pregnancy test on July 29th (Clearblue digital which indicated pregnant 1-2 weeks). Pregnancy stopped 2 days later. Bleeding lasted 8 days and I'm doing ovulation tests daily since that day. Always negative. Cycle Day #21 today. I'm a bit discouraged. Did it happened to some of you? Did your ovulation returned normal? How long did it took?