Uh, well yeah...It's a uterus.
Ha, well I made this for a friend's babyshower game -'pin the sperm on the egg'. There is an actual game you can purchase, so I can't take credit for being ultra creative, but being a cheap-ass I decided I'd just go and make my own! I also drew up the sperm that accompany the main pic: [link]
Yeah... not much else to be said about this. Well, at least I'm getting the practice in for my colouring technique!