5 days of positive OPK

Anne • Mom to River Lawrence and wife to Josh! These boys have my whole heart❤️❤️. Baby #2 due in Aug 2016💙💗
Hi all!  So I have been using the Clear Blue Digital OPK for the past two cycles. This cycle, however, I have had high fertility since March 24--so 5 days including this morning. My last cycle it was high for 2 days and then peaked on the third.
My cycles are pretty long, around 39-40 days and have always been irregular. So maybe that has something to do it 
Any insight or advice is greatly appreciated! Thanks :)