So, women are supposed to be experts in all things feminine related, right? Wrong. Most women are completely ignorant about their bodies, and that's a crying shame. Sometimes, the facts women receive themselves are outdated, which perpetuates false knowledge that people build their entire lives around. For example, the idea that one in three women ages 35 to 39 will not become pregnant after a year of trying is based on French birth records from 1670 to 1830. The world has changed since then.