Implantation?

According to the app my period was supposed to start about yesterday. I’ve been spotting for like 3 days now, nothing heavy/medium. Barely would call it light because I only see when I wipe. Could this be implantation? Sorry for the TMI pics, no cramps unless it’s bowel movement cramps, feeling a bit nauseous every morning, had some food aversions which is surprising because I love to eat lmao. Maybe I just have wishful thinking.. 😣