Implementation bleeding?

Hi, I haven’t tracked ovulation with strips, just with cm. The week of the 14th I had ew cm. I’m supposed to get my period on the 28th. This morning I had ew cm streaked with pinky blood. But zero the rest of the day. Would this be implantation bleeding or spotting before my period? I ve never spotted before but I know some women do.

Update: I’m day 30 into my cycle so I wouldn’t think I’m ovulating again. The week of the 14th I had heavy ew cm. And my other 2 pregnancies that’s how I knew I was ovulating.