When am I Ovulating? A Discussion on OPK’s vs BBT Charting
Many women become confused when their OPK’s (Ovulation Predictor Kits) and BBT’s (Basal Body Temperatures) don’t agree on the day of ovulation- understandably so. This is one of the more confusing topics I’ve researched! We’ll file this under “advanced topics”. Here’s why.
Background: What are OPK’s and BBT’s anyway?
OPK: Ovulation Predictor Kits are tests that you can get at most any drugstore which have the purpose of predicting ovulation. The idea is that they detect a hormone called LH, or Leuteinizing Hormone in the urine. Once they read positive, usually it’s safe to say that you’ll ovulate within 12-36 hours. Read more