Is there a high chance of getting pregnant if you have intercourse on the last day of ovulation?

The probability of pregnancy is low if you have intercourse on the last day of ovulation. The probability of pregnancy is related to egg survival time, sperm activity and the accuracy of ovulation time. In most cases, the probability of pregnancy is highest within 24 hours after ovulation.

The survival time of eggs after release is usually 12-24 hours, while sperm can survive in the female reproductive tract for 2-3 days. If ovulation occurs early on the last day and sperm activity is good, pregnancy is still possible. However, at the end of ovulation, egg activity decreases and fertilization ability weakens. At this time, the probability of pregnancy in the same room decreases significantly. Clinical observation shows that the probability of pregnancy during intercourse 1-2 days before ovulation can reach more than 30%, while the probability of pregnancy the day after ovulation is less than 10%. Key factors affecting pregnancy include the regularity of women's menstrual cycles, the accuracy of monitoring changes in basal body temperature, and the quality of men's semen.

In rare cases, a woman may ovulate additionally or ovulate so late that the last day of ovulation is actually within the egg survival window. This condition is more common in people with irregular menstrual cycles, polycystic ovary syndrome, or those who have recently taken emergency contraceptive pills. If these special factors exist, you may get pregnant accidentally even if you have intercourse at the end of estimated ovulation, but the overall probability is still lower than at the peak of ovulation.

During pregnancy preparation, it is recommended to accurately determine the ovulation day through basal body temperature measurement, ovulation test strips or ultrasound monitoring. Increasing the frequency of intercourse 1-2 days before and on the day of ovulation can increase the probability of pregnancy. At the same time, you need to maintain a regular schedule and avoid smoking and drinking. Women can supplement folic acid 3 months in advance, while men should avoid high temperature environments. If you have had regular intercourse without contraception for more than one year and have not become pregnant, it is recommended that both parties undergo reproductive system examinations, including hormone level testing, semen analysis, and fallopian tube patency assessment. Daily changes in the menstrual cycle can be recorded, and the characteristics of cervical mucus can be observed. The appearance of egg white-like stringy secretions indicates that ovulation is about to occur.