Throwing up regurgitated food...

Lately I have been having problems digesting my food I guess. I keep having like food I guess regurgitated food sitting in my throat (is what it feels like)  to where i throw up with no effort just to clear it out. This has been happening just about every meal for over a week. I am 17 weeks pregnant. Anyone else have this issue? I have been taking Prilosec (prescription) and also Pepcid ac.. Doesn't seem to help.. If anyone has any suggestions I'd really appreciate it