Played it, beat it a couple times, then beat the game. Overall it's good. The pixel art is fairly decent, and the animation loops have a decent amount of work put into them. I'm a big fan of pregnancy, and it's nice to have it integrated into the gameplay.
As a game, it's pretty easy. Like most tower defense types, it's about resource management. But even if you're terrible at that, the game is pretty forgiving. I didn't realize the cum mechanic until wave 10 or so, and even being behind wasn't too bad. The only thing bringing this down is that the story is a nonfactor, and the number of waves you need to get through is quite high. Once you've seen one enemy's animation, you'll be spending most of your time skipping it, so I think the "game" part of this lingers a bit too long for its own good. Worth a play if you like pregnancy.