Mounting can sometimes be a show of dominance. I've had pregnant does mount other does, especially if the other doe is in heat....(I know, goats are nuts, and hormones sometimes makes them even nuttier).
BUT...2 weeks does not 'guarantee' breeding either.
So the answer to your question is, she may or may not be preggo.
I successfully convinced the breeder that goats can go into heat! I am bringing her to be bred again today.
One of the farm hands said that they had only been together for 3 days and not 2 weeks, and that no one had seen her be bred or that she went into heat
I brought her in and the buck mounted her immediately, but didn't all the way.
then she urinated on his face and started yelling at him and flagging....is that normal?