If you are trying to say that semen can travel from within the anus to the uterus while staying inside the woman... sorry duke, you are mistaken. Pregnancies occuring without ejaculating inside the vagina happen when semen comes in contact with the outside of the vagina and seeps inside. While unlikely and improbable that this will result in a pregnancy, it is not impossible.

Btw, teddy, my last post was mainly for nightrider's benefit, affirming what had already been said.

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Put me on wheels and I'll turn tricks.

Clever? Nah, I ran out of that years ago. But if you find this, let me know, k?
"The road goes ever on..." ~ Tolkien

In memory of my friend skip...
Go then, there are other worlds than these