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Changes in the urinary system during pregnancy. The body goes through many changes during pregnancy. Significant anatomical changes occur in the urinary system. Under the influence of the hormone progesterone, the kidneys and the ureters dilate. This can lead to a slow down in the flow of urine through the ureters and therefore an increased risk of urinary infection in pregnancy.
The kidneys are responsible for handling urine, so it makes sense that urine will start to change if the kidneys are failing. Some examples of urination changes include: â¢ Urine comes out bubbly or foamy â¢ Urine may have traces of blood â¢ You may have the overwhelming urge to urinate during the night, waking up