Nausea in pregnancy, commonly called morning sickness, usually starts around week 6, peaks between weeks 8 to 10 or 11, and generally stops or significantly improves by the end of the first trimester, around week 13 to 14. However, for many women, it can continue into the second trimester, usually clearing up by 16 to 20 weeks. In some cases, nausea may linger longer or rarely last throughout the entire pregnancy. Severe nausea and vomiting, a condition called hyperemesis gravidarum, can last longer and may require medical treatment.
Timing of Nausea in Pregnancy
- Starts: Around 6 weeks of pregnancy.
- Peaks: Between 8 to 10 or 11 weeks.
- Usually subsides: By 13 to 14 weeks (end of the first trimester).
- Can last: Up to 16 to 20 weeks or sometimes longer.
Variability
- Some women have nausea only briefly.
- Others may have symptoms lingering into the second trimester or even throughout pregnancy.
- Severe cases (hyperemesis gravidarum) may last longer and need medical attention.
Causes and Symptoms
- Thought to be related to hormonal changes, especially the rise in hCG hormone.
- Symptoms can include nausea, vomiting, loss of appetite, and sensitivity to smells and foods.
Most women find relief after the first trimester, but it's important to seek medical advice if nausea is severe or preventing adequate nutrition and hydration. This summary is based on multiple reputable sources including Cleveland Clinic, Health Partners, NHS, Healthline, and more.
