nonsense. just have a zipper going down the front of the stumach. we have all this empty space between our ribs and pelvis where we could give birth without damaging ourselves, but evolutionary needs have created a specimum where the eggs and sperm are excreted at the excretion end of the digestive tract. this is clearly an inefficiency caused by our evolutionary pathway, but there's no way in hell we're going to randomly mutate to give birth elsewhere in our bodies.