Lifting your legs up against the wall after intercourse may increase the chances of conception by allowing the semen to remain in the vagina long enough to increase the chances of the sperm and egg combining. Putting your legs up against the wall after intercourse allows the sperm to enter the uterus as quickly as possible, preventing it from spilling out of the vagina prematurely and allowing it to bond with the egg more efficiently. If you want to increase the chances of conception, you can use ovulation test paper to monitor the status of ovulation, have intercourse during the ovulation period, do not move too early after intercourse, you can put pillows on the hips, elevate the hips, so that the sperm and the egg better combination. If you have been preparing for pregnancy for about a year and are still not pregnant, it is recommended that both men and women seek medical attention in a timely manner, go to the hospital for examination together, and prepare for pregnancy scientifically under the guidance of the doctor to promote the success of pregnancy.