Ovulation normally occurs on the 14th day of the menstrual cycle, but this can vary from woman to woman. Keep in mind that charting your BBT for one month will not enable you to predict the day you ovulate but rather give you evidence of signs of ovulation after it has occurred. Charting your BBT over a few months, however, will help you to see a pattern to your cycles, enabling you to predict when ovulation will occur in future months — and when to hop into bed accordingly.
Just as your cervical mucus changes as ovulation approaches, your cervical position also goes through changes. When you’re most fertile, your cervix will be higher, softer, and more open.
