So, why are these women not able to recognize that they are overweight or obese? Researchers have a hunch that's it due to the obesity epidemic sweeping the United States. It's so prevalent, that, to many, overweight body types seem like the norm. And what's the problem with weight misconceptions when it comes to pregnancy? Women who do not accurately asses their body types are less likely to follow pregnancy weight-gain guidelines, and are therefore at a higher risk for caesarean sections, giving birth to larger babies, and having more difficulty getting back down to their pre-baby weight.