If you want to have a preconception test, it is best to do it after three days of menstruation and without intercourse. The preconception examination includes gynecological examination to understand the development of the vulva, vagina and cervix, and a double examination to understand whether the uterine attachments are normal and whether there are inflammatory diseases. Blood tests for sex hormone six, thyroid function, eugenics five tests, HIV syphilis screening, liver and kidney function tests, and hepatitis B and half tests are also required. There are also routine tests for white belt, electrocardiogram, blood tests, urine tests, and stool tests. In addition, if necessary, ultrasound examination is also required to find out whether there are small fibroids in the uterus, small tumors in the pelvis, and to understand the condition of the endometrium. Basically, these are the pre-pregnancy tests, and it is advisable to go to the hospital on an empty stomach.