Muscle Spasms in my uterus

Okay, I posted a few days ago that I was feeling these weird fluttering feeling or muscle spasms.

After that I haven't felt anything for a couple of days. Then yesterday morning when I woke up I felt it non stop I could even see it through my spandex leggings move. I am not gassy I know the difference, but this feeling I've never felt and I seem to feel it fluttering a lot more of I bend over or sit. There's no pain at all, just the twitching fluttering type of feeling.

I'm 10 days until AF is scheduled to arrive. Hoping my AF stands down this month with a positive test. Does ANYONE know what this could be? Is there anyone experiencing this too??

I need answers