Dizziness, nausea, vomiting. Pregnant?

If there is no contraception before sexual life, dizziness, nausea, vomiting after menstruation delay, may be caused by pregnancy, but also may be caused by heatstroke or gastroenteritis and other diseases. Pay attention to timely investigation according to the doctor's guidance, so as to timely adopt targeted methods according to the causes, and no matter what causes dizziness, nausea, vomiting, at the same time pay attention to daily health care measures to prevent symptoms from becoming more and more serious.