help!! in so much pain

I started getting pain last night, i woke up in the middle of the night screaming in pain. No it's not contractions, it was constant pain. It's not round ligament either, this was way different. It's on both sides of my belly, it hurts to even push on my belly. It hurts to get up, or even walk. I have so much pressure. I'm 18weeks. My mom gave me medicine and nothing's getting better.