I don't know if i should be concerned? Debating on going to er

As we all try not to worry so much while pregnant, I was wondering if this is a regular thing. So I think I might have over exerted myself today putting together the reveal for our LO. Needless to say, I sat down to hard and had this shooting pain in my stomach. And for the most part I've been having cramps ever since. I'm not sure if I tore a ligament or what, but I can't lay down without feeling like I'm having the worse period cramp of my life. I'm not sure if this is Braxton Hicks or what.