Ovulation Tracking After Miscarriage

Janelle

I had a miscarriage July 11/12th with bleeding completely stoping by the 17/18th. My doctor told me it would be between 4-6 weeks before I could expect my period. We didn't want to get pregnant between miscarriage and 1st period post miscarriage so I was tracking my ovulation. We had sex July 19th bc we were drunk and dumb. This ovulation test is from today this morning on August 9th. This evening I am spotting. Is this my first period post miscarriage? How could I be ovulating and bleeding for a period at the same time?