Ovulation: If When How

    Q: Am I ovulating and how can I find out?

    A: "How do I know whether I am ovulating?" is one of the most important and frequent questions we get on BabyMed. There are several ways to find out if you are ovulating. Some of these you can do yourself at home. Others require help from your doctor:

    1. Regular Menstrual Cycles: If you have a very regular menstrual cycle lasting between 21 and 35 days, ovulation is likely happening, but you cannot always assume exactly when you will ovulate.
    2. Fertility Charting: Fertility charting includes taking your basal body temperature (BBT) and looking for other fertility signs, such as changes in the cervical mucus. A biphasic basal body temperature chart shows reliably that you ovulated. Typical changes in cervical mucus (egg-white cervical mucus=EWCM) will also help you figure out when and if you ovulate and when your fertile days are.
    3. Blood Progesterone Levels: A elevated progesterone level about a week after presumed ovulation confirms ovulation.
    4. Pelvic Ultrasound Examinations: If they are done before and after ovulation they can show the development of the follicle and if it disappears, ovulation can be assumed.
    5. Endometrial Biopsy: An endometrial biopsy about 10 days after ovulation can confirm that ovulation happened.
    6. Ovulation Predictor Kits (OPK): OPKs are pretty reliable methods of detecting ovulation. A positive OPK can predict ovulation most of the time.