Early pregnancy is diagnosed primarily in women of childbearing age, starting with a history of menopause, usually for more than 7 days. If the menstrual cycle is 28 days, and if the period has not occurred for 35 days, then the first thing to consider is whether or not you are pregnant, and you can also use auxiliary tests to help confirm the diagnosis. A very simple and commonly used test is the urine pregnancy test, which is very simple and convenient and can be done at home. A more accurate test is a blood test for human chorionic gonadotropin (HCG). If HCG is greater than 5 ng per milliliter, pregnancy is considered. With pelvic ultrasound, if menopause is more than 35 days old, the gestational sac can be seen on pelvic ultrasound.