I'm usually on a 30/31 day cycle but have had 43 day cycles this year as well.
I'm also 100% sure I only ovulated yesterday or Monday. I never got a positive opk on the days I THOUGHT I was ovulating and had no EWCM. Up until Tuesday, I had loads of EWCM and a positive opk, plus a sharp pain in my left ovary, so that HAD to be ovulation.
So, I guess I'm going back to a 40 day cycle this month UNLESS I have only a 5 day LP which I'm sure isn't the case.