Braxton Hicks?

I’m a FTM so I’m not sure what a contraction even feels like, but for the last few hours the baby has been kicking and moving very low which is very uncomfortable because I’m not used to her being that low. My stomach keeps tightening up, almost like a cramp but feels a little different. Does this sound like it could be just Braxton Hicks? I am getting a little nervous bc I’m not used to this and I automatically assume the worst. Also I am 29 weeks today. Thanks in advance for any advice!