By rray, 5 September, 2024 Exclude Patient Type Detail Header No Detail Type Text Detail Text Sx based cervical mucus symptothermal TwoDay methods 3 nbsp nbsp Caution if post menarchal perimenopausal breastfeeding 6wk after menses resume post ab chronic dz w uarr body temp using drugs that affect cycle regularity hormones or fertility signs nbsp n Calendar based method 3 nbsp nbsp Caution if post menarchal perimenopausal breastfeeding after menses begin delay until after 3 postpartum menses regular cycle resumes using drugs that affect cycle regularity hormones or fertility signs nbsp nbsp Delay us Counseling points 3 nbsp nbsp Caution that sx based and calendar based methods do not protect against STIs including HIV Patient Type Detail Header (Long) Fertility-awareness methods cautions: