Hi - My husband and started ttc last July. We sucessfully became pregnant in December. Unfortunately I had a missed miscarriage and had a DNC perfmored at 11 weeks. Since then (and during our previous efforts) I have been using OPKs. I am a 27 day cycle and the predictors indicate that I am ovulating around day 16. This has been consistent month to month, and though this gives me a slightly shorter luteal phase, I have had no reason to doubt the validity of the tests. However, I recently had my progesterone level tested at 7 days after when I "should" be ovuling based on my cycle length and again at 7 days after when my predictor is indicating that I am ovulating. At day 20 I my progesterone was 24.6 and at day 23 it was 10.9. My doctor says that this clearly indicates that I am actually in fact ovulating at day 13 which is exactly where I should be for my cycle lenght.
How is it possible that for almost a year of using predictors, that they consistently show my ovulation as being later. Also, this month I suspect that I had a chemical pregnancy (faint blue line for one day and then all days since, negative results). If that was in fact the case, can that have effected my progesterone results.