Yep, creamy is a post-ov thing.
With DD, I had heaps of creamy CM in the two-week-wait, and that lasted for most of the first trimester and was a pg thing for me, but it was waaaay more CM than normal
With #2, I didn't have anything of the sort so it obviously isn't always the case. You'll know in a week or so
I hope TTC is short for you, and that this one is a sleeper!!