Cramping or something else?

I woke up this morning to these weird pains. They start at the top of my bump, and then work their way from the top to the bottom of my belly, and towards my back. They’re not crazy painful, they almost feel like I need to use the restroom, but I’ve tried and it didn’t help. They come about every 15-20 mins. Should I be concerned? I’ve tried laying on my side and drinking lots of water. Could it just be Braxton Hicks?