pregnancies. but he is quick to point out that duo fertility is not a substitute for ivf. ivf is excellent for people with tubal problems, meaning the tubes are blocked. you can use the duo until you are blue and in the face and will not get pregnant. i got so excited, but he cannot believe it. reporter: but for those longing to be parents and have no fertility i, dow oh fertility may take this guesswork out of becoming a parent. abc news, new york. on a personal note, that doctor delivered my daughter. saw him pop up hey. we know he is the real deal. unbelievable. i saw him in action. i was ready to faint and he was cool as a cucumber. anyway, this is a heck of a device. really is. we saw the percentage but what does it mean in numbers? so apparently the company behind this temperature concept which is essentially what it is it takes the temperature of a woman s body, it says that more than 1,000 women using the device has become pregnant since the release in 2009 in e
before committing to ivf. one day the doctor told me, hey, there s something new. do you want to try it? reporter: it is called duo fertility approved recently by the fda. the tiny sensor measures your body s vital signs, sleep patterns, menstrual cycle and temperature 20,000 times a day and tells you the optimum time for you to conceive. et sensor is worn under the arm and collects data even while you sleep. every couple of days it is uploaded to a company in cambridge, england, where the data is analyzed and returned to the patient by e-mail. this is like a personal trainer with a temperature monitor and your personal trainer is in england giving you e-mails and telling you what to do. reporter: you do a fertility claims that six months has a 38% success rate, compared to one cycle of ivf that has a 36% success rate. dr. moritz says he s given it to ten patients resulting in three