TTC baby number 2 after miscarriage

Abbie

Ok so I’m confused. With my first baby I didn’t get to track my ovulation before finding out I was pregnant. Last month I had a miscarriage right at 6 weeks. I’m trying to track my ovulation now and I’ve gotten 5 days of “dark” negatives. Is this normal for cycle day 28?

Also a side note I did take a pregnancy test that had two lines but I think the second was a bad evap