(October 8, 2017 at 9:46 am)Catholic_Lady Wrote:(October 8, 2017 at 9:40 am)pocaracas Wrote: Not a machine... but an app on her phone.
This thing has a temperature rod you put in your mouth and another rod you stick into your vag. Do that every morning and record your period on there, and it's really reliable so long as you don't "cheat" and have sex during the fertile week lol.
yeah, yeah... the app does something similar, but one uses an independent thermometer and some nifty finger trick for the viscosity. Still failed!
And it's not just one week.