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When does morning sickness nausea end?

Aug 24, 2022 Source: Cainiu Health
Dr. Lv Aiming
Introduction
Nausea and vomiting of pregnancy (NVP) typically resolve by week 12. In patients with normal and stable hormone levels, early pregnancy symptoms usually begin around weeks 5–6 and subside by approximately week 12. In cases of twin pregnancy or abnormal pregnancy, these early symptoms may persist longer. After implantation, a normal embryo gradually develops chorionic villi and begins secreting human chorionic gonadotropin (hCG).

For pregnant women, nausea and vomiting are among the most uncomfortable experiences during pregnancy. They may be unable to enjoy delicious foods, and some women experience no obvious symptoms after conception—so much so that they remain unaware of their pregnancy. Nausea and vomiting are, in fact, the most common early signs of pregnancy. Pregnant women should seek medical evaluation as soon as they first notice bodily discomfort. So, when does morning sickness typically subside?

When Does Morning Sickness End?

Morning sickness generally resolves by week 12 of pregnancy. In women with normal and relatively stable hormone levels, early pregnancy symptoms usually begin around weeks 5–6 and subside by approximately week 12. However, in cases of twin pregnancies or abnormal pregnancies, these symptoms may persist longer. After implantation, a healthy embryo gradually develops chorionic villi and begins secreting human chorionic gonadotropin (hCG). The higher the hCG level, the more severe the early pregnancy symptoms tend to be. Nausea and vomiting commonly appear around week 6; maternal hormone levels peak between weeks 8–10, coinciding with the most intense phase of early pregnancy symptoms. After week 10, hCG levels gradually decline, returning to baseline by week 12—thus, for most healthy pregnancies, early pregnancy symptoms resolve between weeks 5 and 6.

Pregnant women often consume more nutrient-dense foods during pregnancy. If nausea and vomiting recur upon eating such foods, it may indicate either that the fetus does not currently require those nutrients—or that the food is contaminated. This response can also be viewed as a protective mechanism employed by the developing fetus. Although the fetus remains physically inactive during early gestation, its presence is “announced” to the mother through symptoms like nausea and vomiting. Historically, vomiting was one of the primary indicators used to confirm pregnancy—further underscoring how closely nausea and vomiting have been associated with fetal presence.

We recommend choosing light, non-greasy foods during pregnancy. If nausea and vomiting are severe, consuming bland foods such as congee (rice porridge) or fresh fruits may help. Avoid rushing to supplement nutrients excessively. We hope this information proves helpful.

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