Spotting or period?

I’m 9 days late...I’ve been 10 days late before and got my period but it was months ago.

****TMI****

Last night I had sex for the first time in about a week, today I went to use the bathroom and when I wiped there was very light pink on the toilet paper. I tested 3 days late into my expected period and got a BFN so I wanted to wait until the 2 week mark to test again. Is this sporting or period?