... positive OPK until CD26. I then got my period 6 days later. Does this mean Chlomid isn't working? I had a scan CD 10 and had 3 follicles 1 X 13mm and 2x 10mm. Nurse said it was too early to tell if Chlomid was working. Should I take the second round of Chlomid as prescribed even though my cycle has changed on it?