Possible muscle pull Help????

Courtney

So I'm 13 weeks pregnant and a few days, I puked this morning when I woke up like I do every morning. This morning when I puked I hurt my side not sure if I pulled a muscle or what. But it currently hurts bad and feel it with every movement I make, and times where o cramp in the front. Should I go to ER or wait till tommorow and call my obgyn. But I have to work till 5 today and I'm a cashier so I'm moving Alot. What should I do?