If you want to check if you are pregnant at home, you can use a pregnancy test stick or a pregnancy test paper, both of which are basically the same as the clinical test. If you go to the hospital for a checkup, there are more ways to do it, you can find out if you are pregnant by drawing blood and checking the blood HCG, and you can also find out if there is a gestational sac in the uterus by ultrasound to determine how many days pregnant you really are. At home, you can only test whether you are pregnant with a pregnancy test stick or a pregnancy test paper, and when two red lines appear on the test stick or two red lines appear on the pregnancy test paper, it indicates that you are pregnant, and you need to go to the hospital for an ultrasound if necessary to find out whether you are pregnant inside the uterus or outside of the uterus and to rule out the possibility of a hyperemesis gravidarum, which can be clinically confirmed by ultrasound examination.