After this time that is 16 weeks completion the vomit will reduce very significantly in early trimester the vomiting is heavy because of hormonal changes which are rapid and to reduce the vomiting sensation natural remedies are important if it is happening more than 3 times a day then only doctor consultation is required otherwise you need to hydrate yourself and take more of lemon water and oranges keep sniffing lemons and oranges entire day whenever you feel like vomiting and also sit in open space is doing meditation early in morning helps to control the stress because of hormonal change