First is think positive , vomiting in pregnancy is due to rising hcg hormone which indicates that pregnancy is ok and so next time when I vomit be happy that ur Baby is fine ,and don't worry but at the same time to reduce vomiting do not drink water in large amounts and drink it in sips at frequent intervals, take whatever u prefer but in small amounts and if not diabetic take chocolates, dry fruits etc and avoid spicy food , once again do not worry be happy this won't last for more than 3 to 4 months just think about the Baby goodluck