14 DPO help! Implantation???

I’m 14 DPO but 3 days late for AF (I have a very consistent 32 day cycle and I ovulate late. Last two days I’ve had some more cramping and low back pain and very very very minimal light pink discharge (not even bleed...)

I only see it if I check my cervix (which is still super high and soft but I can’t tell open or closed), and then when I wipe my finger I see the pink tinged discharge. It’s actually more brown even.

What are the chances that this is Implantation? Is it too late for implantation or can it happen after a missed period?

Here’s my chart - we times pretty well. First cycle but last two we conceived first cycle also.

Thank you!!