Calling all OPK pro's- help needed

Hi ladies,
This is my first post on here but have lurked before. I have a bit of a situation with my opks that I can not figure out and need some help. Background is I have been off the pill for 14 months and had very irregular cycles and they have just gotten back into sync. This is cycle 2 of ttc and last cycle I used opks successfully with ovulationg beig confirmed. I have pcos but am still supposedly able to use opks.
Here is the problem on Monday evening I tested using confirm opk and it very close to a pos just not quite
Tuesday morning confirm opk def a positive
Tuesday evening pos confirm opk did an Ic opk very faint line so neg
Wed morning confirm pos opk
Wed evening pos confirm opk but neg fr opk still a line seen maybe half strength
Thurs morning and evening on confirm opk not positive fading slightly fr half strength
Fri morning confirm still fading fr still half strength
Fri evening no more confirm opk did fr barely a line and nothing on Ic
I have done a hpt and it's neg so I have no idea what is going on!

I have 39 ish day cycles and usually ovulate day 27 I an at day 25 so thought I may have ovulated early..... But perhaps not.

So does anyone have any idea what is going on?

TIA :)