Brownish/slightly pink CM!!! What does it mean?!

Megan • Trying for baby #1 💜👶🏻 💙

Tonight I started having some brownish but pink tinged cm. I’m still having pelvis cramping, slightly sore breasts that have changed color, huge appetite, acne, and mood swings. I had a negative pregnancy test yesterday at the doctors but this cm started today, whereas before it what purely white cm. Anyone have any idea what it could mean? Implantation??