One day can make a huge difference

I triggered last night! My u/s yesterday went great, some of the follies on the left caught up so we were very excited about that. My ER is tomorrow morning at 9 am.

My only issue at this point is that I have a softball sized welt on where I had the trigger shot last night. It feels like a bruise but has not turned into one yet. Has anyone had this happen to them?