Early pregnancy generally 6 weeks pregnant may occur pregnancy vomiting reaction, the specific is different from person to person. Pregnancy vomiting reaction is generally due to changes in hormone levels in early pregnancy, there may be drowsiness, vomiting, loss of appetite, frequent urination and other phenomena, usually occur around 6 weeks of pregnancy. But this also varies from person to person, not everyone will have early pregnancy reaction, some pregnant women throughout the pregnancy is no reaction. Some pregnant women have no reaction during the whole pregnancy, but there are also some pregnant women who have heavier reaction during the whole pregnancy. Under normal circumstances, it usually gets better around 12 weeks of pregnancy. Early pregnancy reactions do not need special treatment, as long as the period to maintain an optimistic and cheerful state of mind, light diet can be. If the vomiting is serious, you should go to the hospital in time.