Help! Should I go to ER?

courtney🌻 • 21. Lucas Michael & Liam Scott - 9.25.15
I'm 4 dpo and I woke up with some pretty bad cramps. I've tried to take Advil but the pain has gotten worse and worse to the point I'm crying and curling up in a ball. I don't know what I should do. I was in and out of the hospital when I was younger for ovarian cysts but this does not feel like a cyst. The pain is much worse. There is no bleeding or discharge. Just extreme cramps very low on my left side and in my back. Please help me.