Clear Blue Advanced Digital OPK?

Hey all!

It's my first month TTC with this monitor, I have very irregular cycles so I opted for the 20 tests pack. I started testing on CD 9. I had two low readings (CD 9 & 10) and now I'm on a 6 day streak of high readings (CD 11- 16). Has any one else had this happen? I'm hoping my peak reading shows up this weekend!