User blog comment:JuliaCullenx/Question/@comment-156.77.111.19-20131123162008/@comment-7600752-20131215224137

Edward was able to get Bella pregnant because a male doesn't go through ferticle cycles. His testicles are constatnly producing sperm. A female is defferenty....she DOES have cycles when she's fertile and readly to concieve a child. Many different hormones come into play....she secretes an egg (ova) it travels through the fallopian tubes, and if it's fertilized it goes to the uterus...which has also been prepared by hormones which now has a lining, or blanket of blood for the egg to attach itself. Then the females body begins secreting other types of hormones so that the egg will stick. If it didn't do this, then the females body would see the fetus as an invading body....and her immunities would begin attacking it. So, there are lots of roles for a woman's body to play in order to get and remain pregnant. A male's body does none of these things. He just keeps churning out sperm...or semen. Since the male's body doesn't go thru fertile phazes....it's not affected when a male is turned into a vampire. Although the semen is somewhat different now since it is basicly another form of venom. But this venom is different from the saliva venom....and desn't change a human into a vampire. A male vampire still produces viable sperm in his semen....just as he did every day of his life as a human male. So there....now you know! :)