Are these contractions?

Madison
Went to bed with some consistent tightening (belly was getting hard on most "contractions") around 10 or 11, can't quite remember. My back was really hurting so I thought that or lack of fluids was the cause. (Drank almost 24 oz of water and put the heating pad on my back.) Was able to fall asleep for awhile. 
Woke up at 2:45 to pee and the contractions are still there. So is the back pain. Not tightening with every contraction, but I've been up for an hour now and they're still coming consistently. Not painful, but uncomfortable. I tried timing a few and it said they were coming every minute, lasting around 20 seconds. 
I'm only 34+3.