Sperm life span outside. Ask A Question. Men may boost their fertility by taking vitamins before trying to conceive. Trapped air when having sex. Share this: Sperm can move until dried. Motility may matter as much as sperm count when it comes to getting pregnant. Men may boost their fertility by taking vitamins before trying to conceive. Female condoms with spermicides are 70 to 90 percent effective. However, some research has also suggested that this time frame may vary from woman to woman, and even cycle to cycle. Hill, M. These temperatures are affected by surrounding temperature and activity level in a hotter room or during the usually active act of intercourse both would be warmer. The ideal conditions for sperm are about 93 degrees slightly below body temperature, much like that of the testicles and moist with a pH around 7 to 8. As a man, I am not used to receiving pleasure Can a woman still be sore — three days after sex?