When my wife gave birth, because she was nursing (an apparently bottomless baby), she lost weight pretty fast. Her doctor cautioned her against losing weight *too* quickly, said it can be unhealthy.
As hot as some of these women look, what I see is an obsession for bodily perfection that is unhealthily extreme. A roll in the hay for a couple of hours, yes; but I certainly wouldn’t want to live with one of them. Most of them are probably so OCD they would drive you NUTS.
I have seen women obsessed with body perfection diet and exercise through their pregnancy. I don’t know about this woman but just the fact that she is taking selfies for the world to see makes me suspect that she is a bit self absorbed. Four days out from having my babies all I wanted to do is hold them and send pictures of them out to the whole world. Sadly her husband’s attention is not enough for her.