Implantation bleeding????

I’ve been having light cramps prior to seeing this after I wiped. Cramps have lasted about a total of 3 hours on and off, not painful at all but just there (if that makes sense).

My breast have also felt more full/tender, especially when I touch them, I’ve also been having occasional headaches and have been tired. I’m not sure if these symptoms are implantation bleeding OR if it could also be due to me starting a new pack of birth control???

I came out of town with my boyfriend this weekend and knew I would be starting my period, so I started a new pack of pills to skip my period for this weekend. I’ve done this before, a long time ago in the past, but I have never experienced these symptoms before (even when on my normal pill schedule). Im also currently on the Tri-Lo-Estaryll pills.

Could this be due to me starting a new pack or possible implantation bleeding!?

Thank you in advance!