changes in luteal phase?

Hi, I have been TTC for over 12 months with PCOS. I am currently on cycle day 65. My periods range from 30days to 65days typically. I believe I ovulated (all signs and symptoms were positive) 16 days ago. 
While my cycle length changes, the luteal phase always seems to be the same, and I get my period 14days PO.  Is it possible for this to become irregular as well with PCOS? Not wanting to get my hopes up and trying to understand my body more.