Is morning sickness normal?

Dr. Heather Hilkowitz talks about the prevalence of morning sickness. Click play to watch the video or read the transcript.

Is morning sickness normal?

Well over half of pregnancies deal with some morning sickness to some degree. It really runs a large spectrum. Some women are very lucky and just feel a little bit queasy here and there. Other women have the all-day sickness but most of the time it gets better shortly after that first trimester ends. There can actually be some validity to the old wives’ tale that morning sickness is a reassuring sign for a pregnancy. Typically part of what drives morning sickness are the chemicals associated with pregnancy and the hormone changes associated with pregnancy. If all is going well those pregnancy levels early on are driven higher and higher and lead to that sensation of morning sickness. So there really is some truth to that.


Morning sickness is a common condition that women experience in the first nine weeks of pregnancy, according to the American Congress of Obstetricians and GynecologistsOff Site Icon (ACOG). Although it’s called “morning” sickness, it can occur at any time of day, according to the ACOG.

Nausea is a major symptom of morning sickness and about one third experience vomiting, according to the National Institutes of HealthOff Site Icon (NIH). Moderate weight loss is not unusual, and some women may still feel symptoms of morning sickness into the second trimester – the third to fifth month – of pregnancy, according to the NIH.

The cause of morning sickness is thought to be the change in hormone levels that occurs during pregnancy, or may be related to decreased blood sugar, according to the NIH.

For more information about morning sickness, talk to your doctor.

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