You should be eating more foods higher in iron. Liver, red meat, fortified cereals, prune juice, dried beans and peas are the best sources of iron. Raisins and other dried fruits, liver sausage, prunes, spinach and beet greens, broccoli, peas, molasses and whole grain breads are moderate sources of iron. Many of these foods are also high in fiber, which would also help your problem with constipation. I have morning sickness and am only about two months pregnant.
Morning sickness does cause nausea and vomiting.
It does not always occur in the morning however and may last the entire pregnancy. Most women only have morning sickness from about week 10 to week 16 during their pregnancy. The cause of morning sickness is not known and food tolerance varies from individual to individual. If you get nauseated in the morning, try keeping some salted crackers by your bedside. Eat three to six crackers before you get up.