She is definately pregnant looking to me.
If she has milk in her udder and is displaying those signs she is pregnant.
It even sounds like she could be due soon.
That white/cream goo could be a sign of getting closer to kidding or starting pre-labor
It could be a while yet though. Some start discharging days or weeks pre-kidding.
Her udder (not too good with pygmies) look like it could fill a lot more, but she could do that within hrs or a few days before kidding.
Keep an eye on her and happy kidding!
Also with goats you don't go by look. A goat can not look pregnant at all and pop out twins.
I have a doe that is due in 2 weeks at most and doesn't look pregnant at all. But I know she is because of her udder.