Jan 30 2011 From Nicole Kidman and Halle Berry to Celine Dion and Kelly Preston, many famous women have decided to put off having children until later in life. Some even admitting they weren't concerned with the risks. While the media covers women well into their 40s and beyond giving birth, they don't talk much about what went into getting them pregnant. Then there's the rest of the world. When we asked our readers to cast their vote on when the average woman should become concerned about fertility, 38 percent said the late 30s are the time to worry. Yet, studies seem to repeatedly contradict that notion, are you influenced by them?