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Yes, this is called the Rhythm Method / natural family planning: http://www.everydayhealth.com/sexual-health/rhythm-method.aspx http://www.everydayhealth.com/se
by chillacy 9y ago
Yes, this is called the Rhythm Method / natural family planning: http://www.everydayhealth.com/sexual-health/rhythm-method.aspx http://www.everydayhealth.com/sexual-health/rhythm-method.as...
Of course the tricky part is having perfect fertility information
- dozzie 9y agoThis method is also called "Vatican roulette".
- true_religion 9y agoVatican roulette has worked for me for over ten years... Or I'm infertile. It's kind of a toss up, but anecdotally I wouldn't rely on it if you wanted frequent sex. All contraception is a probability issue but there's a huge difference between 99% and 80%.