Ok, after O, your CM should dry up again. Mine would always become creamy and abundant immediately following O and then become sticky and scant in the days leading to AF. I think that is very similiar to what most ladies experience. The month I got pregnant, my CM was exactly the same. Around 7 dpo I hardly had any, so I assumed I was another BFN. Then all of a sudden at 9 or 10 dpo it became very abundant and creamy again. I am 7 weeks now and getting lots and lots and LOTS of creamy CM. I need to start wearing panty liners it's that bad.
I'de say that's a great sign that you are getting more than normal!