Constipated.. I think? Lots of pain!!

I woke up at 4 am with supremely bad stomach pain all over. I can’t get back to sleep it hurts so bad and I feel lightheaded. It seems like maybe constipation but I’ve never dealt with anything this bad? It’s now 5:30 and Im still in lots of pain. I’m really worried about my baby (13 weeks). What should I do?! 😰