It is understandable to feel concerned if your morning sickness suddenly stops at 8 weeks, especially given your history of ectopic pregnancy. However, every pregnancy is different and the absence of morning sickness does not necessarily indicate a problem. Morning sickness can come and go or even disappear completely as the pregnancy progresses. If you are experiencing other symptoms such as severe abdominal pain, vaginal bleeding, or dizziness, it is important to contact your healthcare provider immediately as these could be signs of another ectopic pregnancy or other complications. Otherwise, try not to worry too much and trust in regular prenatal check-ups to monitor the progress of your pregnancy.