Worried I might be in preterm labor?

Ma
I'm currently 29 weeks. 
I'm hydrated. Haven't really been active today. Went to cook dinner and started to get this annoying light period cramp feeling.. It didn't go away just got consistently annoying.. Then my lower back started aching, and then soon after followed low pelvic pressure.. I'm sitting down drinking a Gatorade (for good measure) and it's not stopping.
Should I be worried enough to call L&D and talk to a nurse?
I live an hour away so.. Driving down there for nothing is a huge waste of gas..

Glow Resources

Let’s Glow

Glow is here for you on your path to pregnancy

Glow helps you navigate your fertility journey with smart tools, personalized insights, and guidance from medical experts who understand what matters most.

25+ million

Users

4.8 stars

200k+ app ratings

20+

Medical advisors