A woman can ovulate 400-500 eggs in her lifetime, from the first menstruation to menopause normally there will be 1 mature egg discharged every month, that is, from the age of 13 or 14 years old until menopause at about 50 years old, this time period there is ovulation. Normally, ovulation occurs alternately between the two ovaries, and there are cases where 2 eggs are ovulated in a month, but the chances are very small. If you ovulate 2 eggs a month and have intercourse during ovulation, you will be pregnant with twins. It is best to go to the hospital to check the ovulation situation through ultrasound. Some people have abnormal hormone secretion in their body, abnormal body development and so on will affect ovulation. If you have been married for a year, have a normal sex life, and do not take contraceptive measures, has not been pregnant may be ovulation caused by abnormalities, you can go to the hospital for ultrasound, use ovulation test paper and other checks. If you do not ovulate, it may be caused by polycystic ovaries, ovarian cysts, premature ovarian failure and so on.