TW.. am I miscarrying?

The first day of my last period was the 22nd of February. I’ve had slight pink spotting since my ovulation date, had a very very SLIGHT positive.. it might have not been it was so faint. But now my period is almost two weeks late and strangely enough I kept having positive ovulation tests like this whole month? I’ve been nauseous, had excess saliva, felt dizzy. Today all of a sudden I ran to the bathroom and passed a golfball sized clot out of nowhere.. could I be miscarrying?