Spotting on day 23

jasmine

I’m on day 23 of my cycle and have been experiencing slight nausea and cramping but thought maybe I was thinking about it too much. Today I started lightly spotting (brown) and the cramping has increased a little. My cycle varies from 30-35 days so I’m wondering if this could be implantation bleeding? Or maybe it’s more likely my period is just starting early? Just wanting to get my thoughts out and see if anyone has any opinions/similar experiences. Thanks!