A strong positive ovulation test indicates ovulation. Early pregnancy test paper, also known as the white board, indicates that there is no pregnancy, the two are not contradictory. Although there is normal ovulation, but there are other reasons can lead to infertility, in the clinic the most common is the fallopian tube obstruction, due to chronic inflammation of the pelvic cavity leads to more oozing, so that the tubes are adhered to the tubes, resulting in tubal impassability, even if there is a normal ovum discharge, the sperm and the egg is not able to combine, will also lead to infertility. As the woman’s body has anti-sperm antibodies and anti-endometrial antibodies positive reaction, this is immune infertility, even if there is ovulation, it will cause infertility. The uterus itself lesions, such as uterine fibroids, endometrial polyps, uterine developmental abnormalities, may cause infertility because of ovulation. It is recommended to have a detailed examination to mainly understand the cause of infertility and then give treatment.