Did she chart BBT (basal body temperature) accurately? For how long?
RAH – Basal body temperature charting is the single best way for a woman to keep track of her monthly cycle and its regularities or irregularities. With respect to fertility, BBT charting can tell you your typical cycle pattern (that you usually ovulate around Day 17, for example). Other ovulation signs, notably cervical fluid, are better *advance* indicators of ovulation in a given cycle; BBT can only tell you that you’ve ovulated after it’s happened, when it’s too late to conceive.