I used this method in the late 70s. I can tell you that this works very well. I knew the exact night I conceived and had Ingrid Nichole exactly 9 months to the day. When I went to the doctor he was trying to give me a due date and I told him what the date would be. I was right and he was wrong, .....and he was shocked
Also, Father O'Brien knew the Billings'
http://www.billingsmethod.org/index.html
The Billings Method, it works!
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The Billings Method, it works!
Devotion to the souls in Purgatory contains in itself all the works of mercy, which supernaturalized by a spirit of faith, should merit us Heaven. de Sales