Does anyone have any tips on using saliva ferning for nfp?

  • Thread starter Thread starter chemaeslay
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Yeah, NFP is somehow really controversial for some people.

Weird.
 
Saliva ferning is a very interesting topic, and I would like to know more about it. I am too old to have to worry about any of this anymore myself, but the knowledge could help me in talking to young people that I know.
 
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