how soon after conception does morning sickness start

Morning sickness most commonly starts around 6 weeks of pregnancy, which is about 2 weeks after conception. Some women report feeling nausea as early as 4 weeks pregnant (just about a week or so after conception). Typically, morning sickness peaks around 8 to 10 weeks of pregnancy and tends to improve or end by around 12 to 14 weeks (the start of the second trimester). However, timing can vary, and some women experience it earlier or later, or even for a longer duration.