charting ovulation as birth control
Jun. 14th, 2006 12:41 am![[identity profile]](https://www.dreamwidth.org/img/silk/identity/openid.png){kind=small}
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vaginapaginaHey everyone. I know a few people on here chart ovulation as a way of birth control/ family planning. I'm wondering if there is a reliable detailed website on how to? Barring that I'd like book recommendations. Thanks!
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