A pinkish discharge for a woman still in her reproductive years would mean two things: a soon approaching period or an infection.
But as you are way past your reproductive age and are menopausal, this appearance can be related to a few things:
-Infection (as you are still sexually active)
, polyp, myoma
, cancer (rare), etc.
It would be difficult to comment on the exact cause, I am sure you understand that most of these conditions have a similar presentation; and only further investigations can find the exact cause.
I feel reassured that you are soon visiting your doctor. In the meantime, please abstain from all forms of sexual contact until your doctor deems it safe.