Morning sickness typically starts between the 4th and 7th week of pregnancy, with many sources noting around week 6 as a common onset time. It often peaks between weeks 8 and 10 and usually improves or goes away by the end of the first trimester, around weeks 12 to 14. However, the exact timing can vary from person to person, and some women may experience symptoms earlier or later, or even throughout pregnancy in rare cases
. In summary:
- Usual start: 4th to 7th week of pregnancy, often around week 6
- Peak severity: 8th to 10th week
- Typical resolution: by 12th to 14th week (end of first trimester)
Morning sickness can include nausea and vomiting and may occur at any time of day, not just in the morning
