Excessive cm, sign of first pp period?

I’m almost 11 months pp and haven’t had a period yet, in fact since I stopped bleeding after the birth i haven’t even had any spotting or noticeable cm at all. I’ve stopped wearing panty liners which I used to always wear.

However yesterday I had LOADS of light yellow cm. Do you think this is a sign my period will come back soon? I did google but didn’t find an answer so just curious whether others experienced this?