Up to 80% of pregnant women have nausea and vomiting to some extent. Nausea and vomiting are most common and most severe during the 1st trimester. Although commonly called morning sickness, such symptoms may occur at any time during the day. Symptoms vary from mild to severe.
Nausea & Vomiting of Pregnancy is a common symptom and occurs in 50-70% of pregnancy females between 5 to 11 weeks of pregnancy. It usually starts settling from 11 to 12 weeks of pregnancy.