Hello and welcome to ‘Ask A Doctor’ service.  
I have reviewed your query and here is my advice. 
It is the most common problem in 
pregnancy due to 
hormonal change in first trimester of pregnancy. After body adaptation, gradually it will decrease. Take the following advice:
1. Increasing rest time. 
2. Taking fresh outdoor air help in faster improvement 
Diet care:
1. Eat when hungry
2. Small frequent diet
3. Avoid spicy fatty foods
4. Avoid pill with iron
5. High protein diet reduce vomiting
6. Try to take Herbal tea, cracker, unbutterd toast, gelatin contain desserts help to reduce severity
7. Take more carbonate beverages. 
Drugs:
1. Take 
doxinate and vomiking according to gynecologist advise.
2. You can also take vitamin B6 and ginger capsule.
Accupressure therapy like electrical stimulation around wrist help to reduce severity.
Hope I have answered your query. Let me know if I can assist you further.
Regards, 
Dr. Sagar