Pregnancy with gerd

I want to first thank everyone that's been helping me out the past few months. Well, I'm pregnant now and after already getting morning sickness pretty bad and dealing with a few flare ups with my acid reflux, i'm really scared. I know the last time i was prego, i was put on Prevacid because of heartburn and i didn't even have gerd then! Now, i'm freaking out. I'm going in for my first ob/gyn appointment the first week of May and I'm also going for my endoscopy around then too. Anyhow dealt with gerd while they were pregnant? Any help??