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What is natural family planning?
The fertility cycle
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absolutely infertile phase abstinence avoid a pregnancy baby basal body temperature basic infertile pattern birth control bleeding bloodstream breast feeding calendar calculations cervical changes cervical mucus cervix climacteric clinics conception contraceptive pill corpus luteum couples double-check method dryness ejaculation fallopian tube family planning methods fertile and infertile fertile phase fertile-type mucus fertility awareness fertility cycle follicle gland hormones increase indicators of fertility levels of oestrogen menopause menstrual cycle method of natural methods of family mucus method mucus pattern multiple-index methods natural family planning natural infertility natural methods normal oestrogen oestrogen and progesterone ovaries ovulation ovulation has occurred ovum partners Peak Day peak mucus day peak mucus symptom penis possible postovulatory phase problems produced progesterone puberty reproductive system secretions sensation sexual intercourse single-index method sperm stopping the pill symptoms of fertility temperature method temperature shift thermometer tion types of mucus uterus vagina vulva woman woman's body women