Ever wondered what’s going on inside your body when you’re pregnant? I mean we all know what’s going on on the outside…right… but what about inside??

Making a baby in 9 months is pretty magical, but what our bodies go through is just as amazing.

Your uterus on average is 7.6cm x 4.5cm x 3cm (length, width, thickness). When you become pregnant, over time your uterus will stretch to approximately the size of a watermelon and will sit in your pubic area and reach the bottom of your rib cage. That’s pretty impressive.
After you have given birth it will take on average 6 weeks for the uterus to reach pre-pregnancy size. This process is called involution.

Your lungs and diaphragm all move up into the chest cavity to make room for your little person you are busy making. Some pregnant women become very breathless as a result. Some women are lucky and don’t experience this, this is usually if they are carrying ‘low’.

Your intestines all move upwards by about the 20th week of pregnancy, and many women experience heartburn and acid reflux as a result, of the expanding uterus pressing on the stomach… “Wheres the Gaviscon?”

Around this point, you may also notice your breasts begin to get fuller, and you may experience some leaking. This fluid is called colostrum, and it resembles a thick and yellowish fluid. All completely normal. Some women may notice spotting (blood). This is common and is due to the growth of blood vessels within your breast. If you are at all worried or concerned. Please speak to your midwife or your GP.

Childbirthconnection.org state “Your breasts are also changing to get ready for breastfeeding. First colostrum and then milk are produced by the grape-like clusters of tiny sacs (alveoli) deep within the breast tissue. Clusters of alveoli form lobules, which come together to form 15 to 20 lobes. Each lobe connects to a lactiferous duct for conveying milk. As the ducts extend toward the nipple and areola ( the darker area around the nipple), they widen into the lactiferous sinuses. These sinuses (or milk pools) release the milk through 15 to 20 tiny nipple openings in each breast when the baby nurses.”

Your bladder is often the last organ to feel the effect, this is because the 1st and 2nd trimesters your baby rises upwards into your abdomen. In the 3rd trimester, the baby begins to descend and get into position and your bladder gets squashed making you need to urinate more frequently.

By the time you approach 36 weeks, your uterus has pushed your xiphoid cartilage (bottom of the breastbone) forward. You will become increasingly out of breath, as your lungs, heart and diaphragm have all been pushed out of position. Eating becomes hard and you may feel discomfort afterwards. There is not a lot of room left inside now. Hang in there, not long left now.

So whether you’ve had a baby, or are pregnant or even if you are trying… hopefully you will now appreciate what amazing body women actually have.



VIDEO: Museum of Science and Industry, Chicago