Ovulation days after AF?

I’m usually pretty in tune with my body and can feel when I ovulate however I just haven’t felt right since my CP 2 weeks ago. I’ve been awfully crampy since day 1 of this cycle/beginning of CP bleed. Dr told me we could continue TTC as normal and just treat if like AF, but I have had almost positive OPKs literally days after I finished bleeding, and now they are almost completely bright white negative. Did I ovulate really really early? Should I continue with the opks this cycle just in case? Ovulation was supposed to happen in around 3 days time but it’s been 3/4 days since the darkest opk