Nausea and vomiting associated with pregnancy and occurring most often in the morning. About half of pregnant women experience morning sickness. Nausea may occur throughout the day, not just in the morning. This condition usually lasts for three to four months. It, but may continue throughout the pregnancy. For most women it is an annoyance. For some it can result in dehydration necessitating hospitalization.
One way to minimize this problem is to eat small snacks throughout the day (light dry foods like crackers are best), drink plenty of liquids, avoid spicy foods, and avoid preparing food. There is a physiological basis for morning sickness- it is not 'all in the mother's mind'.