DuoFertility is a two-part fertility monitor. A small button-sized sensor is worn under the arm to collect 20,000 temperature measurements throughout the day. A handheld reader collects data from the sensor to instantly alert the user to her most fertile days. When connected to a computer, the reader transfers more fertility information to provide users with a more detailed report. The system also allows women trying to conceive to enter additional physiological parameters, such as cervical mucus conditions and length of cycle. With the cost of IVF often exceeding $100,000, would you be willing to try the monitor?