Example image of eyePlorer eyePlorer map for 'Fertility awareness': Menstrual cycle Female reproductive system (human) Fertilisation Catholic Church Basal body temperature Cervix Mastodynia Mittelschmerz Fertility monitor Billings ovulation method Creighton Model FertilityCare System Calendar-based methods World Health Organization Toni Weschler Natural family planning Abstinence Lactational amenorrhea method Augustine of Hippo Childfree Manichaeism Theodoor Hendrik van de Velde Kyusaku Ogino Pope Pius XII John Billings Georgetown University Ovulation Cervical cap Diaphragm (contraceptive) Menstruation Abdominal pain Back pain Barrier contraception Polycystic ovary syndrome Sexually transmitted disease Decrement table Pearl Index Gestational age Miscarriage Guaifenesin Pregnancy test Couple to Couple League Infertility Cambridge Temperature Concepts Nabothian cyst Concealed ovulation Jewish views on contraception Unipath Henry Joseph O'Brien Fever Abortifacient