Hi; When our goats are ready to freshen [give birth] their udder gets considerably bigger, their teats will be shiny quite a bit, and mucus slime will start coming out under the doe's [goat's] tail. I can't tell how big her udder is but it is tucked well up under her so may be bigger than it appears. I would keep close check on her and watch for any more changes especially for the mucus. My husband just looked at the picture and noticed what looks like mucus on her tail. He thinks you are looking at days rather than weeks. Good luck.