Am 2mths 9days pregnant and I can't eat well at all always vomiting nd I don't know what to do?

Call your OB. There are medications that can be prescribed and almost all OB providers have an after hours/weekend answering service. Call the office and see if you can reach the on call provider. Have a 24 hour pharmacy # ready for the provider as well as you date of birth and allergies.
Best to contact . Your ob/gyn doctor. Hyperemesis gravidarum is the medical condition in which pregnancy is associated with severe nausea vomiting that lasts longer than morning sickness and can cause severe electrolyte abnormalities and nutritional disturbances. You may have this or a severe form of morning sickness and so your ob/gyn doctor should be made aware and you should be evaluated.