Implantation bleeding or period?

My cycle is usually about 24-25 days. My period is due tomorrow. I only cramp the first day of my period, AFTER it has started, and it always starts off gushing. Pretty easy to tell when my period starts lmao! I've been cramping since yesterday, on and off, and noticed some light pinkish discharge today. It's not nearly as heavy as my period would be, but it's kind of consistent?

I'm not going to take a test yet because it would be a waste if my period does come tomorrow, but I'm wondering if this could be implantation? Very strange for me to have this type of bleeding. Cramps started 10dpo, today is 12dpo, and when the spotting started.

Would it be worth it to take a test tomorrow if this continues, or should I still wait?