Severe rib pain, help!

Melanie
I'm 31 weeks today and I've been having horrible rib pain on my left side for about 3 days now. I can't sleep or get comfortable and it feels like I'm being stabbed. I've had broken ribs before and that's what it feels like. It hurts to even breathe. I called my doctor and they said just take Tylenol. And if it gets worse to go to the emergency room. Has anyone else had this before? Any advice on how to make it better? I just want to be able to sleep a little bit.