Make sure you keep drinking plenty of water too, know it might be hard but I was in the same place and got admitted to hospital to be rehydration. Been on anti-sickness tablets since I was 7 weeks pregnant and antacids since about 18 weeks and they've helped a lot. Good luck!
I think you should see a doctor my doctor assigned me to take pills every time I feel like I'm gonna vomit maybe he/she will give you the pills also