Implantation?

Hey y’all, so I had unprotected sex Oct. 11-14th and I started to get weird symptoms this week, and my birth mom had similar symptoms a week after conceiving as well. I was supposed to start my period on the 19th (5 days ago) and I still haven’t gotten it. Today I had some light cramping and some light pink spotting that’s nothing like my period and only shows up whenever I wipe? Any thoughts?