Natural Methods
 


Cyclebeads[1],[2]

It is a collar with different colors, which represent the woman´s menstrual cycle.

It is based in the Standard days method, that works for woman with menstrual cycles between 26 and 32 days, by avoiding sexual relations between days 8 and 19 of the cycle[3] and it is 95% effective avoiding pregnancy.[4]

Between days 8 and 19 of the cycle sexual relations should be avoided in order to postpone pregnancy.

Pregnancy probabilities rise 4% if sexual relations take place 5 days before ovulation, and rises to 30% after ovulation takes place, decreasing to 8% every day after the day ovulation had taken place. The chances of pregnancy are zero during the rest of the cycle.

It is 100% natural without negative effects on male and female health.

It costs 23 dollars and can last for a lifetime. The learning process in minimum.

If you are interested in acquiring it, send us an email and we will ship it to you.

References:

[1] http://www.cyclebeads.com/

[2] Wilcox AJ, Weinberg CR, Baird DD. Post-ovulatory ageing of the human oocyte and embryo failure. Human Reproduction 1998; 13(2):394-97.

[3] Arevalo M, Jennings V, Sinai I. A fixed formula to define the fertile window of menstrual cycle as the basis of a simple method of natural family planning. Contraception 2000; 60:357-60.

[4] Arevalo M, Jennings V, Sinai I. Efficacy of a new method of family planning : the Standard Days Method. Contraception 2002; 65;333-38.


 

  

 

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