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By the end of your pregnancy, your weight will be distributed as below:
Baby = 7-8 pounds
Uterus = 2 pounds
Placenta = 1-2 pounds
Amniotic fluid = 2 pounds
Maternal breast tissue = 2 pounds
Maternal blood = 4 pounds
Fluids in maternal tissue = 4 pounds
Maternal fat and nutrient stores = 7 pounds

How you gain this weight is important for your overall well-being.