I keep getting a positive frer test, and I am cd12. Not 12dpo, but cd12. The only reason why I think MAYBE I should contact my fertility clinic is that I have been on 5 mg Letrozole for a few months now. My fertility doc refused to increase my dosage to 5 mg for months, because he said there was a higher chance of multiples. He finally agreed after the lower dosage was unsuccessful. Maybe when I had my period 12 days ago, I just lost one twin or something? I don't want to sound like a crazy lady at the fertility clinic, though.