A fascinating video reveals pregnancy's impact physical on a mother's body as her insides literally make room for the baby.

The interactive demonstration, which launched on Friday, was created by the Museum of Science and Industry in Chicago.

The clip shows a computer-animated woman's body from the side and tracks internal changes throughout the three trimesters over the 40-week period.

A fascinating video reveals the extent of pregnancy's impact on a mother's body as her insides literally make room for the baby

'Make Room For Baby,' the experiment is entitled, 'The baby isn't the only one changing'.

As the film moves through the pregnancy process until birth, it shows the womb expanding, the intestines and stomach becoming squashed and the breasts enlarging.

The interactive dial, which users can move, details the different stages, from 'Estrogen increases 1000x' and 'Food cravings and aversions' to 'Baby moves 30 times/hour' and 'Muscles and joints loosen'.

The interactive content is some of the first high-definition material to illustrate the pregnancy process in accurate biological detail.

It shows the changes from conception to the point of birth when organs are squeezed, the heart works harder and the baby presses upon the bladder, causing discomfort.

At this point, the baby is starting to develop, beginning with the brain, spinal cord and heart. At four weeks, the embryo is just a quarter of an inch long.

At eight weeks, the baby begins to develop into a foetus, the major organs start to develop and the heart to beat, arms and legs start to form and facial features begin to develop.

The footage shows a computer animated woman's body from the side with all the internal organs on show

As the film moves through the pregnancy process until birth, it shows the womb expanding, the intestines and stomach becoming squashed and the breast enlarging

At the end of the first trimester at 12 weeks, it’s possible to tell if the baby is a boy or a girl, the eyes close and nerves and muscles begin to start working together so it can form a fist, for example.

It’s in the second trimester that a woman’s appearance starts to change and the ‘bump’ starts to grow, causing aches and pains as well as stretch marks and other physical external signs.

At 20 weeks, the baby is more active and kicking.

The interactive demonstration was created by the Museum of Science and Industry, Chicago

The interactive dial, which users can move, details the different stages, from 'Estrogen increases 1000x' and 'Food cravings and aversions' to 'Baby moves 30 times/hour' and 'Muscles and joints loosen

PREGNANCY 'CAN IMPROVE HEALTH,' EXPERTS CLAIM Being pregnant has a 'rejuvenating effect' on women, a recent study claims. And for older women it could help them feel young again, almost literally, as pregnancy helps regenerate tissue and slow down the ageing process, it added. Researchers studied the effects of liver transplants on pregnant and non-pregnant mice using a high-tech MRI scanner at the Hadassah Medical School in Jerusalem. It found in young, non-pregnant mice, 82% of the liver had regenerated after two days and in older, non-pregnant mice, only 46% had regenerated in that time. But in older, pregnant mice around 96% had regenerated after two days, better than the non-pregnant rodents both young and old. They also found that pregnancy protected the rodents from tissue damage around the heart, which is also an irreversible part of the human ageing process, said the study. Advertisement

Measuring around six inches (15cm) long and weighing it at some nine ounces (255 grams), it can swallow and hear.

Just four weeks later, fingerprints are formed and hair starts to grow, but all these amazing developments take their toll on the mother’s body.

Her liver starts to be pushed upwards and there’s not as much room as there was for her stomach, while her hearts begins to work harder.

But it’s the third trimester when a mother’s internal organs become really squashed.

As the baby grows, the lungs become cramped and move upwards, while the intestines move out of the way and the bladder is noticeably squashed.

This results in some women having breathing difficulties and having to use the toilet more regularly, particularly if the baby ‘drops’ and moves lower in the abdomen.

Meanwhile real mothers describe in their own words what they experienced and felt during their own pregnancies.

Shelley, says: 'Something that is supposed to be two pounds could be kicking you that hard? Sometimes it kind of takes your breath away!'

'I remember thinking, "I don't know how I'm going to get this baby out,"' said Kathryn.