I'm typically not one to share humorous images through email or in blogs or on forums, but this thread took a very strange turn.
If you play Second Life, you will quickly pick up on what is going on in this thread. If not, then a short explanation.
SL is similar to a MMORPG in that you have a virtual world to explore. However, unlike most RPG there is no RPG element - it's a world where you craft your looks based on what you want, buy toys and tools and build things as you can or desire to do so. You can modify your skin and body to be human, elven, dwarven, drow, animalistic, furry, four-legged friend, monsters, aliens, what have you.
You can, in fact, make yourself pregnant. You can even ad scripts where the baby in your belly communicates things, where you feel randomly distributed 'kicks' etc.
It sounds like people have taken it quite a bit further than that. There are, apparently, scripts for simulating a menstrual and potential pregnancy cycle, as well. However, there is an error in the script....it works on male avatars as well as female ones. https://blogs.secondlife.com/thread/6129