There’s no evidence that any particular sexual position is more likely to lead to conception. You may have heard that positions that deposit the sperm closest to the cervix — such as the missionary position (man on top) — are more promising than other positions. But there are no studies to back this up.

Proper timing, on the other hand, is a crucial factor. To make conception more likely, have sex a day or two before you expect to ovulate and then again on the day of ovulation.