Reasons for morning sickness

Why do I feel so sick?
Thought to be caused by the sudden surge of hormones during pregnancy, many women feel sick, especially in the morning. For some women this can lead to vomiting which lasts all day, particularly if they don’t eat often enough, causing their blood sugar to drop. For most women the nausea stops around the twelve week mark, but there is no hard and fast rule and there are the unlucky few who experience morning sickness during the whole pregnancy. Traditionally morning sickness is considered to be a positive sign that the pregnancy is progressing well. In reality roughly half of all pregnant women do not experience morning sickness and yet go on to bear healthy children.