Lower abdominal pain- 21 weeks

I’ll be 21 weeks on Friday and I am having some super uncomfortable lower abdominal pain. It’s worse when I’m up and moving around and subsided when I’m laying down. It almost feels like a tight cramp and when I press on my belly it feels hard. Any idea if these are round ligament pains or possible braxton hicks?

I’ve been having lower back pain that’s radiating to my left hip as well, wondering if it’s related..

I had my anatomy scan Monday and little boy looks perfectly healthy and fine (he’s wiggling away as I type this!) so I’m sure he’s okay, I just need some relief 😭

(including a picture of my precious boy ❤️)