There are many wonderful couples or even individuals out there that dream to become parents but experience difficulties. In fact, 6.7 million women in the US are unable to get pregnant.(source: asrm.org)
You are born with about one million immature follicles in your ovaries. During childhood, about half of those are being reabsorbed in your body. When you start your menstrual cycle, each month, about 10 to 20 follicles surface, but only one or two will mature with help of the naturally developed estrogen hormone to become eggs that could potentially be fertilized. The remaining follicles will be reabsorbed in your body. But when you stimulate your ovaries that month, all of the 20 follicles have the chance to mature and become viable eggs and potentially embryos!