Advice please

So i took an ovulation test the 21st and it was positive and I started my period on the 29th. My question is could I be pregnant? I was expecting my period on May 6th now idk if I should wait to take a pregnancy test. I was bleeding heavy the first three days. It's barley lighting up now. I had a lot of blood clots and was thinking maybe I had a miscarriage. I'm stressing lol What do you think?? Any advice would be appreciated (: