Confused after miscarriage

Kelly

So I just started tracking again after a miscarriage this summer, so my body isn’t in a routine yet. Not sure when to expect my period exactly, but my temps indicated ovulation 13 Days ago. My temps have stayed above the cover line since then. I tested today but had a BFN. Any chance I tested too early for my body? Also, thinking about trying ovulation tests. Any recommendations on what Brand/type? Are they done every day of the month?