Originally Posted by ryansdad

12-25 pounds weight gain during the average pregnancy??? Where on earth did you come up with these numbers?? The american college of obstetricians say the average weight gain depends on several factors including their height and pre-pregnancy weight well as the mothers age. They say the amount she will gain also depends if she is under,normal, or overweight prior to conception. The A.C.O.O's guidelines are as follows: average of 35lbs weight gain if she is underweight prior to conception, 25-40lbs weight gain for women who are "normal" weight prior, and only 15-20lbs weight gain for women who are overweight. If you average those numbers across the board, then the true average a woman will gain is 28.3333 pounds which is 3 lbs above your high end number. And here is where the weight is distributed:

Baby - At birth your baby may weigh between 6-8 pounds.
Uterus - The uterus expands during pregnancy 40x its normal size and may weigh 4 pounds.
Placenta - The placenta, vital for nourishing your baby, generally weighs 2.5 pounds.
Breasts - Breast tissue often grows during pregnancy, and may weigh up to 2.5 to 5 pounds.
Blood Volume - Your blood volume will increase during pregnancy 7.5 pounds.
Fluid - Your body will retain some fluid during pregnancy, as much as 6 pounds!
Amniotic Fluid - The fluid surrounding your baby will weigh approximately 3.5 pounds.
Maternal Fat Stores and Nutrients - You will also gain about 9 pounds of weight that can be attributed to maternal fat and nutrient stores as well as muscle development.
Most women will add on some fat to store for the baby, which is vital to support energy and breastfeeding. These pounds generally come off relatively easily after birth, so don't waste time stressing out about them during your pregnancy! Pregnancy is not the time to diet!

This is 45.5lbs on the high end and 32lbs on the low end for the "average pregnancy"

Not her pigging out or "eating for 2"

My wife is 5'7, weighed 140lbs and was 37y.o prior to conception and was well within "normal" weight range and looked fit, sexy, and beautiful. She did not pig out nor did she diet or try to deprive our son of vital nutrients just so she would be as thin as possible and the day she delivered our healthy beautiful son, she weighed 185lbs.

And you know what? with her motherly pregnancy glow and all the new curves and belly carrying our precious cargo was just as if not more beautiful and sexy to me as she ever has been.