Horrible Taste in the Mouth

I’m 15 weeks pregnant and I have this really bad taste in my mouth that’s driving me insane. I had acid reflux so I thoughts that’s what’s causing it. I got medication for the acid reflux but the horrible taste hasn’t gone away. It’s not metallic or anything like that. It’s just bad. Any tips on how I can get rid of it? It’s making being pregnant so unbearable.