Sore belly

I’m 19 weeks, I spent about 12 hours painting my house today, there wasn’t any heavy lifting involved but I was standing pretty much all day with a few breaks in between. My back is pretty sore (obviously) but my uterus is really sore. It hurts constantly unless I’m completely relaxed and even then it still feels sore. I’m guessing it’s round ligament pain but it also hurts in the centre, pretty much everywhere across my abdomen is sore.

Should I be worried? I did feel the baby move not too long ago so it must be okay but I’m worried that I put too much stress on my body. I am not an active person and have been super lazy this entire pregnancy because I was on pelvic rest for the first 3 months. Thanks.