I've never temped vaginally either, but the more I think about it, it makes me wonder if that's why I always thought my temps seemed so much lower than most of the charts I've seen.
I was thinking the same thing about the whole just having a baby and the Depo shot... that can easily make things a bit wonky.
But the LOADS of ewcm sounds like a fantastic sign. I can't pay my body to make ewcm anymore!