What are pregnancy symptoms and reactions?

Pregnant about six weeks, generally will show nausea, vomiting, lethargy, fatigue, greasy food and other early pregnancy reactions. General menstrual regularity, 28 to 30 days menstrual cycle, probably more than ten days without menstruation will show these symptoms. If you usually menstruation rules, suddenly menstruation did not come, showing these nausea, vomiting, lethargy, fatigue these early pregnancy reactions this situation, then you must go to the hospital to see, there may be pregnant, at the same time it is recommended not to contact toxic substances, do not stay up late, do not tire, can not smoke and drink.