Round Ligament Pain or Braxton Hicks?

Hey everyone! I'm 33+2 today and yesterday evening I was having some pain I my stomach. It would be an almost tight, just sort of discomfort. Not really pain. But it went from my stomach around to my back somewhat. It would only last about 20 seconds or so and then go away for a while. Sometimes it would come 2 or 3 in a row and then stop for a while. I was super active when i first noticed it so I drank some water and sat on my ball for a while and they went away completely after a couple hours. Baby is still super active and I feel fine otherwise. But I'm a first time mom so I'm just wanting some imput on what this may be? Thanks in advance!