Semen Spillage

When semen is ejaculated, it normally coagulates like jelly. After about 15-20 minutes, it liquefies due to the action of chemical substances secreted by the prostate gland. There will be spillage out of the vagina when penis is withdrawn.

When egg is released from the ovary during ovulation, secretions from the neck of the womb (cervix) facilitate active sperms to move rapidly through the womb and the fallopian tube towards the ovary. It has been found that within minutes of sexual intercourse a few hundred sperms are found near the ovary at that time. Therefore, despite spillage, there will be enough sperms remaining in the body to make the lady pregnant.

Under normal circumstances, sperm deposited closest to the cervix will have less distance to travel through the womb. The traditional missionary position (man on top) helps to accomplish this though no definitive studies have been done. This position allows for the deepest penetration and, as a result, places sperm closest to the cervix. Slightly propping the buttocks with a pillow and lying still after intercourse for about half an hour may help in exposing cervix to the maximum amount of semen. In theory, this also provides the sperm with additional travel time up to the fallopian tube along with help from gravity.

Female orgasm is not necessary for conception although theoretically this may help. When a woman has orgasm, the cervix contracts. The contractions help to keep the semen from flowing out of the vagina after sex and carry sperms further into the womb towards the egg.