I'm on my 3rd cycle using my CBFM. First month it gave me 7 days of High before my peak days (I gather it usually gives you more in the first month). Last month I got 5 days of High before my peak days. This month I'm on CD13 and still getting Lows. I am trying to predict when I might ovulate (I'm due for a Laparoscopy start of Nov and they won't do it if I've got AF). Will I always get 5 days of High before my peak days, or might I get less sometimes? ie: might I just get 2 or 3 Highs and then a Peak? Do you experienced users out there always get the same number of Highs before a Peak, or do you sometimes get less High days? Sorry: hope this all makes sense and hope some of you can help out.