This stunning video created by the Museum of Science and Industry in Chicago, shows the real changes that happen to a woman's body during pregnancy.

A full-term pregnancy lasts about 42 weeks and is broken down into three trimesters.

During the first trimester of pregnancy (week 1 - week 13), a woman's body is flooded with pregnancy hormones that prepare her for the growing baby inside. Most common symptoms and changes in her body will be morning sickness, tender breasts and mood swings.

The second trimester (week 14-27), brings an ease in all the early pregnancy symptoms and her belly will start to look rounder. Symptoms include, swelling of ankles and feet, leg cramps, congestion and achiness in the lower abdomen.

Find out what happens in the third trimester and see the awesome animation of the whole thing in progress!

The final trimester (Week 28-40), she's DEFINITELY showing a full, round pregnancy belly and likely experiencing a lot of movement from the little life inside. Symptoms during at the end of pregnancy include fatigue, heartburn, and lack of bladder control thanks to the little one pressing down on her pelvic floor.

This fascinating, interactive video allows users to navigate the process of pregnancy by adjusting a dial. Incredibly, as the baby grows, the woman's internal body shifts to make room for new life.

A truly an eye-opening experience for anyone who wants to know more about the miracle of life. Check it out below and prepare to be amazed!

[h/t Mirror / Daily Mail]