Related articles:
Basal body temperature
Birth control
Cervical cap
Contraceptive sponge
Fertility awareness
Hormonal contraception
Menopause
Natural family planning
Pope Pius XII
Key terms:
augustine
avoid pregnancy
birth control
bleeding
catholic
catholic church
cervical
consider
couples
cycle
days
estimated
factors
failure rate
family planning
fertility
fertility awareness
formula
georgetown university
identified
infertile
infertile phase
length
length of the woman
luteal
method
natural family planning
nfp
other methods
ovulation
per year
periodic abstinence
phase
physician
pope
promoted
rhythm method
roman catholic
ruling
sacred penitentiary
smulders
standard days method
suggested
synonymous
teach
tracking
unprotected
when used to avoid pregnancy
woman
women
Search external links cited by footnotes on Wikipedia page Calendar-based methods:
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