This is a public service announcement.
The external appearance of a woman's body is, in nearly all cases, NO INDICATOR WHATSOEVER of her ability to conceive, carry, deliver, and breastfeed a child. To think and say otherwise is idiotic.
Next time you're thinking of prophesying that a smaller woman you know is doomed on the basis of her size to infertility, miscarriages, or c-sections, ask yourself, would I be saying this if she were 20 pounds heavier or five inches taller? Then ask, does extra weight or height make a person healthier or stronger? Then shut your stupid mouth.
Contrariwise, refrain from saying that a particular woman was "built to be a mother." We all are, thank you: tall or short, curvaceous or straight, substantial or slight, proportional or lopsided. And those who learn of externally invisible flaws in their build don't need your ill-informed comments making them feel worse about it.
Stop acting shocked when a small woman gives birth to a large baby, or a large woman gives birth to a small baby. Both are well within the range of normalcy, and totally out of the woman's control. One of your humble blogresses has even committed her maternal career to demonstrating this.
Do your part to encourage breastfeeding in our obtuse society by refusing to propagate the moronic and completely false notion that size and production capacity are in any way related.
And next time you think of saying that someone doesn't look like she's had a kid, two kids, four kids, seven kids, see if you can't come up with a positive compliment which does not denigrate the physically demanding office of mother and insult those who humbly bear its marks more plainly.