Are you taking them with food? Mine started. To do that so i started taking at night
I have never had vomiting but nausea with the prenatal vitamins. You might want to take them with food and/or try a different brand that is easier on your stomach. I had to go through a number of them because they made me sick.
Good luck! :)
All vitamins make me sick, prenatal or regular didn't matter. I was actually told to take them right before bed. Then my body will be asleep when i digest them so i won't feel as bad. it has really helped me out.
I take them at night too. They got me so sick in the am, throwing up and diarrhea
Try a different brand that may help even try the gummy ones those maybe better for you