Positive opk days apart???

Im really confused at this point...
​I have been diagnosed with pcos for a year now and ttc for the same amount of time. I've taken 150mg of clomid on this cycle as perscribed by my specialist for the first time. On CD 17 I got a smiley face on my clearblue digital opk and now today, CD 28, I received another positive. 
​My last cycle the opk wasn't positive until CD 42. Obviously that didn't work out.
​Has anyone else had this happen? What does this mean?
​Help! I'm so confused!