I’m 2 days late...

So, I’m not TTC, but I do think you ladies would know how to answer my question best.

I’m 2 days late. On the day of my expected period, I wiped and there was nothing, but I wanted to be sure and wiped harder and saw a tiny pink dot on the toilet paper. I decided to wear a liner yesterday, and there has been nothing. Nothing today either.

Could I have ovulated later than expected? Is it possible to spot/implantation bleed on the first day of your expected period??

Here’s a picture so you ladies can theorize. Thank you all so much in advance!