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1.Blood volume: immediately after birth averages about 300ml. (75mL additional blood from umbilical cord â if itâs still attached) But the fluid is lost into the neonateâs tissue spaces again - 300mL maintained. 2.Cardiac Output: in average 500ml/min.
Some of the most common physical changes to occur during pregnancy are seen in the breasts. Soon after conception expectant mothers begin to notice breast tenderness, swelling of the breasts, stretch marks, and darkened areolas (the skin around the nipples). Because of the increase in hormones during pregnancy, many women see this skin continue to darken as their pregnancies progress.