Before Birth: How Your Baby Drinks, Pees and Even Heals You
During pregnancy, fetal cells cross the placenta and settle in a mother’s brain, heart and lungs. This phenomenon, called fetal microchimerism, may help repair maternal tissues long after childbirth. Starting around week 20, your baby swallows up to 500–1000ml of amniotic fluid each day. That fluid is largely their own urine, which they then excrete back into the amniotic sac. This closed-loop cycle supports healthy lung and digestive system practice. Understanding these fascinating processes can give you greater insight into your body’s changes and your baby’s development. Stay tuned for more pregnancy science insights.
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