Vomiting caused by prenatal?

Milly

Hi! I have a question, I have been taking prenatal for almost 1 month, I have experienced nauseas but today (also AF is supposed to show up today) I not only had nauseas but also vomiting... I usually take my prenatal after breakfast and I feel some nausea (for about 5 minutes) but today I also had vomit 😖 I had 2 bfn this week (2/19 and 2/21)... according to your experience this could be a prenatal pills side effect or maybe I should to have a new pregnancy test?