Should my period end up being late?

This is going to sound very stupid potentially so sorry 😅

I have PCOS and today I got my first positive opk in over two years!! I know it might not be reliable because of the PCOS buuuuuut it’s something. So of course hubs and I did the baby dance right away.

Problem is my period is due in 5 days technically. I have fairly irregular periods.

If I do get my period this week does that mean it was a false positive opk and im out?? Or since five DPO is too soon for implantation would there still be a chance for a BFP in two weeks??