When sex and fertilite become friends: a natural contraception or conception aid for everyone A free electronic version of the textbook already exists on sympto.org, manuals. You will find there the full description. This manuel integrates the sympto interpretation program, especially suited when you are learning the symptothermal method or when you wish to know all the details for your own teaching. The natural contraception can be guaranteed when the user has had a follow up by a sympto specialist during 6 months. In short: sympto is most effective natural contraception without (false) predictions, according to its philosophy: "Today I am fertile" or "Today I am not fertile" sympto also identifies the most fertile days of the cycle or it just help women and teens to know their cycle thoroughly. sympto leads to the true women's emancipation and liberation. The manual explains all the programs: 1) the standard symptothermal way, 2) the breastfeeding program, 3) the pre menopause program and 4) the Billings mode: the programs 2 - 4 do not need any temperature takings. Are also included: How to reconcile your sexual life when it comes to practice the symptothermal method? How can you integrate your partner? Concerning especially sexualite, we have written a special book in French and German, visible on our site sympto.org: "Sandra et Timmy: une autre sexualite, racontee aux aux jeunes, hommes et femmes," Editions Symptotherm, Lully VD, Suisse and "Den Geheimcode des Korpers kennen: Grundlagen der Sexualokologie - Fur junge Frauen und Manner, Frieling, Berlin."