By analyzing BBT charts, women can gain insights into: 1. Ovulation Timing: Identifying the day of ovulation helps in planning intercourse for pregnancy or using natural family planning methods. 2. Cycle Length: Regular charting helps in understanding the length of the menstrual cycle and identifying any irregularities. 3. Luteal Phase Health: A luteal phase (time between ovulation and the start of menstruation) shorter than 10 days may indicate a luteal phase defect, which can affect fertility.