First time mom problems?

Carmel • First time mom!
So I started having this pain yesterday it's my lower abdomen but radiates to my lower back its not sharp and doesn't get stronger like how you would describe contractions.. Anyway I'm not really worried thinking maybe it's gas but it's not going away since last night and I've had no actual gas :/ hurts more when I sit down and the baby is moving.. I'm now 32 weeks and completely uncomfortable.. Help?