When Does Morning Sickness Start?


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Morning sickness does not start, for most women, until around the sixth week of pregnancy. For most women, morning sickness will then end some time around the 12th week of pregnancy. Having said that, there are many women who have experienced morning sickness earlier than the sixth week of pregnancy, some of them as early as the second week of pregnancy. While it has not been demonstrated in scientific studies, there are women who believe that they experienced morning sickness pretty much immediately after conception, from the moment that the fertilized egg implants into the uterus. In addition, it is possible for morning sickness to last beyond the 12th week of pregnancy. For some women, morning sickness has continued well into the second trimester, although this is extremely rare.

Morning sickness affects somewhere around 7 of every 10 pregnant women. This places morning sickness among the most common symptoms of pregnancy, with a missed period being the most common (and most obvious) symptom of pregnancy. To understand why morning sickness starts around the sixth week of pregnancy, it is important to understand what exactly may cause morning sickness. Some research suggests that morning sickness may be cause by the variety of hormonal changes that are taking place in a woman’s body while she is pregnant. The levels of hCG in a woman’s body, for example, are continually on the rise during the first trimester, and tend to level off and stabilize around the 12th week of pregnancy or so. While, to some degree, this connection between hormones and morning sickness still has not been proven indisputably, there does seem to be some merit.

If you are experiencing morning sickness that is severe or persistent after the first trimester, you should speak with your health care provider. Nausea or vomiting that last into the second trimester, while they could be due to morning sickness, may actually be a symptom of a different problem of one sort or another.



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This entry was posted in Pregnancy.



 



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