In the traditional missionary position, the woman lies on her back with her legs spread and both of her knees bent and her feet firm on the bed. The man is on top facing her. There are also variations on the basic missionary position: The woman raises one or both of her legs, for example, and the man holds them or places them on his shoulders; or she extends one or both of her knees.
The missionary position is the best sex position to get pregnant because it's very comfortable and allows good body contact. The partners are facing and can kiss and hold each other the whole time they're having intercourse. The woman is able to move relatively freely, and the man can keep some of his weight off of her body by lifting himself up with his hands or elevating his body using his knees.
This position is the best sex position to get pregnant when it comes to conception because when the woman lies on her back, the vagina is tilted downwards toward the cervix, making it easier for the sperm to get through the cervix and into the uterus. Also a plus for the missionary position is that it allows the penis to penetrate more deeply into the vagina, so sperm can enter the cervix more directly right after ejaculation.
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