I'm training to be an engineer propecia canada shoppers drug mart centerpoint The success rates of producing a baby from one round of IVF is about 60 percent at age 30, 27 percent at age 40 and drops to 6 percent between ages 40 and 44, says Grifo, attributing the declining success rates to the fact that a woman's eggs develop abnormalities with age. And therein lies the hope of this new technology. "Egg freezing is a way to be your own egg donor," Grifo says.