As a general guide, during pregnancy the average weight gain is around 11.5 – 15.3 kilograms.
This is made up of:
Breasts 0.5 -0.9 kilograms
Baby 3.0 – 4.0 kilograms
Placenta 0.5 – 0.8 kilograms
Amniotic Fluid 1.0 – 2.0 kilograms
Uterus 0.8 – 1.0 kilogram
Maternal Stores 2.5 – 3.0 kilograms
Extra Blood 1.2 – 1.8 kilograms
Other Body Fluids 1.5 – 1.8 kilograms