Pregnancy symptoms can not be measured out what is going on

If symptoms of pregnancy, such as vomiting and nausea, appear, but the gestational sac is not visible on the ultrasound, this is normal. Because pregnancy reactions will appear ten days after menstruation, but at this time the gestational sac is small, and there is no way to detect it on the ultrasound. If the pregnancy test is carried out fifteen days after menstruation, it is possible to determine whether pregnancy is possible. Of course, you can also go to the hospital for blood tests to determine whether you are pregnant.