Postponement of menstruation, nausea and vomiting are signs of pregnancy?

Menstruation delay and nausea and vomiting phenomenon, does not mean that must be caused by pregnancy, this phenomenon is also related to improper diet, endocrine disorders and other factors. If not assured, can see a regular hospital for blood HCG and other tests, screening whether pregnant. If diagnosed pregnant without fertility requirements, as soon as possible surgery.