There is a strong relationship between sex hormone 6 and pregnancy. If the sex hormone 6 is not normal, you may not be ovulating or ovulation is not normal. If you do not ovulate or if your follicles are not developing properly, you will not be able to get pregnant. Therefore, if you have menstrual disorders and infertility, the first thing you should do is to go to the hospital to have your sex hormone six and thyroid hormone checked, because abnormal thyroid function can also affect pregnancy. The blood test on the third day of menstruation is to check the basal value of sex hormone six, which reflects the function of the ovaries at this time. One week after ovulation, progesterone can be checked at this time. Normally, progesterone is very high at this time, if it is more than 15ng/ml, it means there is ovulation; if it is lower than this value, there is no ovulation, poor follicle development and luteal function is not normal, and this situation will not lead to pregnancy.