In childbirth class, they showed us actual pictures of a fetus developing inside a uterus. They didn't tell us how these pictures were taken, but I suspect it involved a great deal of drinking. We saw lots of pictures. One evening we saw a movie of a woman we didn't even know having a baby. I am serious.
Some woman actually let movie makers film the whole thing in color.
She was from California. Another time, the instructor announced, in the tone of voice that you might use to tell someone that they had just won a free trip to the Bahamas, that they were going to see color slides of a woman entering the hospital. The last slides showed how they got the baby out of the cheerful woman, but I can't give you a lot of detail here because I had to go out for 15 or 20 drinks of water. She evidently felt that this was a real selling point. When we weren't looking at pictures or discussing the uterus, we practiced breathing.