I've heard quite a bit about how weight gain around your mid-section can be more dangerous than weight gain in other places. According to this article, it can also create hormone disruption which could of course lead to infertility. Read more:www.lifescript.com
From the article:
If you’re over 30 and struggling with a tubby tummy, you may suffer from estrogen dominance, warn the authors of From Belly Fat to Belly Flat (HCI, 2007). The condition results from the body’s natural slowdown of progesterone production and leads to weight gain between the navel and the hips, according to Dr. C.W. Randolph, a gynecologist who founded the Natural Hormone Institute of America, and Genie James, a women’s health care consultant.
The body needs adequate levels of the hormone progesterone to maintain bones, regulate sleep, sustain libido, and prevent depression. Progesterone also helps temper estrogen – the hormone responsible for puberty and reproductive function. This causes the body to store fat around the abdomen, but it makes it harder to burn off extra pounds and lower the metabolism in general.