Cramping at 29w4d

So I’ve been cramping for the past 4 hrs. They feel like moderate period cramps. They aren’t coming and going, it’s constant, and my belly is soft so I don’t think I’m contracting but they are semi painful. I’ve been drinking lots of water and resting. I saw my OB today or my normal 2 week appt and he didn’t seem too concerned so I’m just not sure if I should just wait it out or go to the OBED?