Sounds like braxton hicks since it's a dull pain. Braxton hicks is a tight feeling on the abdomen and normally comes & goes a few secs only. And yes, it makes you uncomfortable. While contraction pain stays and will not go away no matter what you do. Pain comes from the back to your tummy and you will feel heavy pressure on your vagina. That's when you need to head to the hospital.
37 weeks are considered full term already. Does the pain comes and go? Real contractions will get stronger and stronger... the pain is too painful and that's when you know that you need to go to the hospital asap.
Looks like it’s Braxton Hicks.. but do call up gynae to confirm...
Salizah Tan