Big blood clot?

Sooo I I started depo (birth control) on march 9th and my period was delayed by two weeks. It was supposed to be march but ended up starting April 10th. When it started on the 10th it was very light up until the night of the 13th. Today while I’m at work I start to cramp and I feel like I have a blood clot coming out, go to check and see this… now usually my blood clots aren’t this big and I can’t feel them. Also they’re usually all red. This one just seems totally different from what I’m used to. It was very thick like