Am in my first trimester and I usually vomit yellowish green in the mornings. Could it be malaria?
But when you vomit and have no food in your stomach, you can bring up some of it. It makes your vomit a yellow or greenish-yellow colour. It may also be clear if you've just drunk water, or frothy or phlegmy. During pregnancy, vomiting can be a normal symptom of morning sickness or reflux.