Having intercourse 10 hours after ovulation will also increase the chances of pregnancy because the follicle will have a certain amount of time to survive after rupture, with some surviving for about 4-6 hours and even some surviving for about 24 hours, 10 hours will also increase the chances of pregnancy, with a 40%-50% chance. It is important to wash the genitals of both parties before and after intercourse to avoid the possibility of cross-infection, which can lead to the inability to conceive. You can buy a pregnancy test after 12 days of intercourse to rule out conception. If you do not conceive, wait as patiently as possible for your period and prepare for your next pregnancy, and have intercourse within 4-6 hours after ovulation as much as possible, so that your chances will be greatly increased. The purpose of conception cannot be achieved due to external factors.