Turns out pregnancy is mildly horrifying when you consider what's really going on inside the pregnant body.
Take for example this telling GIF of how internal organs shift to make room for a baby in a woman's uterus.
The GIF, making the rounds on Imgur and Reddit, comes from an interactive tool from the Museum of Science and Industry in Chicago. The tool allows users to follow the pregnant body as it changes from conception to post-pregnancy.
In that time, pregnancy pumps the heart harder, squeezes the organs and loosens the muscles and joints. Terrifying? We think so.
Be grateful to your mom -- you basically sat on her bladder for nine months.