If you read our "App" page, you would have seen 'sympto-thermal method of fertility awareness' mentioned at least once. Check out "Learn" for a literal book's worth of information (complete with references) about how this works. We've taken an approach of trying to ease people into this, but maybe that hasn't come across in this instance.
How would you suggest we introduce the topic without scaring people off with such scientifically dense-sounding terms as "sympto-thermal method"? Is anything we can say going to be believable to our target customer off the bat?