BBT HELP NEEDED

Monica

I am new to this, and have only just started charting

I am 16 DPO and am 2 days late for AF. I did a HPT on 14 DPO And 16 DPO and both are clear negatives. Not really having symptoms other than appetite and bloating.

I had a peak digital clear blue advanced OPK on CD17.

I had a chemical last cycle so I am wondering whether I ovulated late and my cycle is out?

What do you all think?