Hi, and thanks for your medical question on eHealth forum!
If you are 35 weeks pregnant, consult your doctor and start probiotics to help clear food poisoning. Start yoghurt with your meals. Drink plenty of fluids (clear soups, water, ORS in water, lemonade). Eat light, do not stay hungry but eat simple things like toast, porridge, cereals, crackers, banana, rice, peeled apple, etc. Please consult your gynecologist regarding this. Hope this helps. Take care!