timing intercourse achieve pregnancy fertile window identification, Stanford fertility awareness preconception counseling evidence, cervical mucus monitoring fertility window prospective identification, fertility monitor urinary LH kit ovulation detection comparison, optimal intercourse timing conception natural methods, basal body temperature vs cervical mucus fertility prediction, preconception care physician counseling fertility timing, vaginal discharge charting fertility window pregnancy, time to conception reduction fertility awareness methods, prospective ovulation identification methods current evidence review
PMID 12468181 12468181 DOI 10.1016/s0029-7844(02)02382-7 10.1016/s0029-7844(02)02382-7
Keywords
Adult, Body Temperature, Coitus, Family Planning Services/methods, Female, Humans, Male, Menstrual Cycle/physiology, Natural Family Planning Methods, Ovulation Detection/methods, Pregnancy, Pregnancy Rate, Sensitivity and Specificity, Time Factors