I am 5m pp and tandem nursing and still pumping like 8oz a day. So no AF yet and hopefully not for a while. But I did notice something different that i never had last time. And that is massive amounts of CM, like all the time. I have never had so much and I want to make sure my hormones aren't screwed up or anything. Its not exactly EWCM its softer.
I am also about 5 1/2 months pp, no period yet and have to wear a pad because of the amount of cm I have! I talked to my doctor and he said it's normal because your hormones aren't exactly normal during breastfeeding. As long as it isn't green, or foul smelling it's normal from what I was told.