There is no specific color vomit that indicates pregnancy. Vomiting during pregnancy, often referred to as "morning sickness," can be caused by hormonal changes and can be a common symptom for many pregnant women. However, the color of vomit is not an indicator of pregnancy.
It's important to note that vomiting can be a sign of various other conditions, and it's always best to consult a doctor if you experience persistent or concerning vomiting.