28 weeks with cramps

I’ll be 28 weeks Wednesday and for about 45 minutes now I’ve been experiencing abdominal cramps... feels like period cramps and it’s not comfortable at all... I’ve used the bathroom today (thought maybe I was constipated) and I’ve been drinking water all day and currently am (thought maybe dehydrated ) but the pain still continues... should I be worried?? I felt my baby kick just a few minutes ago but idk if I should go to L&D to be seen or not.. I’ve had Braxton Hicks and it does not fee like what I’m feeling. Has anyone experienced this?