Did I possibly ovulate?

CF

Today marks 3 weeks post d&c.

I just took a pregnancy test to see if it would finally show a negative result and it did. I'm starting to think maybe I received an actual positive LH result on the 19th?? I haven't had my first cycle but I assume it's coming soon. I guess I'm just trying to figure all of this out and I know it can be hard to tell.