I had light brownish thick CM at 9DPO that I only noticed once. I thought it was the beginning of AF as I have a shorter luteal phase. 4 days after the implantation bleed I started getting m/s.

Thanks Megan, that sounds exactly what I experienced today, i thought It could have been early AF as I also have slight cramps, but seems to be fine now, just maybe a slight bit of cramping, AF still isnt due for a week, thats why I was wondering I guess I have to wait a week to find out! Thanks!