Pregnancy is easy during the fertile period, which usually refers to the time when a woman is ovulating, and intercourse on any day during the fertile period is easy to get pregnant and can improve the chances of conception. Women who have regular menstrual cycles can usually predict when they will ovulate, mostly in the middle of two periods, which is the fertile period. If you have intercourse during the fertile period, you can get pregnant every time you have intercourse, as long as there are no abnormalities in the male or female reproductive organs. For women with irregular menstrual cycles who are unable to predict ovulation, ultrasound can be used to monitor ovulation and guide women with fertility requirements to have intercourse during ovulation to improve their chances of conception. Ovulation is mainly affected by the level of ovarian endocrine hormones, if the ovarian function has changed, it can also lead to abnormal ovulation or even no ovulation, and need to consult a doctor in time. If a woman with fertility requirements has been preparing for pregnancy for more than a year without success, it is recommended that she go to the hospital in time for treatment.