The symptoms of nausea and vomiting, if a sexually active woman, should first rule out pregnancy, there are currently two ways to detect early pregnancy, one is the early pregnancy test paper, the second is to go to the hospital to draw blood to check the blood of HCG. most women in the pregnancy of about six weeks time, there will be early pregnancy reaction. Early pregnancy reactions include fatigue, drowsiness, nausea, vomiting, and aversion to oil and grease, with nausea and vomiting being the most common symptoms of early pregnancy reactions. But you can’t just rely on the early pregnancy reaction to diagnose early pregnancy, if your period is still not coming for more than a week, you can test your own morning urine at home or go to the hospital directly to take a blood test to check the blood HCG. using early pregnancy test paper to test your own urine is simple and convenient, but the accuracy is not very high. The blood HCG test is not only accurate but also sensitive, so you can choose which test to do according to your own situation.