I had that last night no matter how I sat, laid or stood it was soo uncomfortable I'm not sure if it's anything to worry about I'm 35 weeks and not dialated as far as I know but the last time I was checked I was 32 weeks
I'm 25+6 and I'm a pansy lol but I have had a painful belly since around 17-18 weeks I think.I ddefinitely can't lie on my back and nothing I do makes the belly stop hurting. At my 20 week ultrasound my little guy was head down so maybe that makes the belly more prone to pain?
If you've put on more weight I'd say that definitely could contribute, I've gained eight pounds in 3-4 weeks and I feel like I'm being tortured.
It could be your little one trying to find a comfy position and/or get ready for labor, especially if you have a grumpy baby to begin with. Can you take Tylenol or something and see if it helps with the pain?