POI fail?

Catherine • TTC #1 @37 via IUI/IVF

I had a gusher tonight after pulling out the needle. It’s the first time I’ve had more than a couple drops of blood. I thought I pulled back to check for blood before injecting but maybe I didn’t. It felt normal going in, and feels fine now (there was initially some pinching pains afterwards). Do I have anything to worry about. Did the progesterone get where it needs to be?