can't tell if it's baby or contractions

Ah
I can't tell if my belly is tight from contractions or if baby is moving during my contractions. Any ideas on how to tell them apart. 36w3d 
I feel the tightening above my belly button and it's sensitive to touch. But when baby is rolling around it's also sensitive to touch at times. FTM and confused 

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