Seriously, look up images of human embryos at about 9 weeks and the chest burster from Alien. All that's different is size and the teeth. I'm convinced if we were supposed to see what fetuses looked like in every stage of development, women's abdomens would turn translucent during pregnancy. I prefer the bonding experience of feeling the fetus move. It was really cool that behavior traits I noticed in utero with my son I could see manifest in him around 5 months when he could crawl. I'm curious to see how that's going to pan out with number 2, who is an entirely different fetus.