Vomiting of pregnancy is a common condition experienced by women during their first trimester of pregnancy. Known as morning sickness, this condition is characterized by nausea and vomiting. While it can be a distressing and uncomfortable time, there are several synonyms for vomiting of pregnancy. These include gestational nausea and vomiting, pregnancy sickness, hyperemesis gravidarum, and morning sickness. Each of these terms describes the same condition, but some may be more appropriate in certain situations. Regardless of what it is called, it is important for pregnant women to seek medical attention if their symptoms become severe or persistent, to ensure the health and wellbeing of both mother and baby during this critical time.