False labor?

Lauren • Married. Mommy. 21. Hairdresser. Free spirit.

So I haven’t really been timing anything but for the last 30 minutes or so my back hurts and abdomen starts to tighten, cramp and harden for a bit and then stop. It’s a lot of pressure but it’s not to the point where I’m like hurting and freaking out. Braxton-Hicks or the beginning of labor? Also I am 31 weeks.