Don, being that the last labs were taken in March, IMO, you should run a new set of E2 labs ("Sensitive or Ultra-Sen Only). Your E2 might be at a level where you don't need any AI's, or it could even be low enough where you need some time to let Test convert to Estro, to get to a desired level. On the LabCorp E2 Sensitive, I've always seemed to be about right in the 25pg to 35pg area, but everyone is a little different.