Is my pygmy pregnant?

I got my pygmy goat about 3 months ago. She was probably exposed to bucks before I picked her up from her previous home. She now lives with 2 wethers, so they are definitely not the baby daddy! We are about 70% sure she's pregnant, because she's been swelling in her stomach, and now her udders are showing, her vulva does look like it's swelling as well. But, I've never had a pregnant doe, so I can't say for sure. She definitely gorges herself on food, always rejects our wethers' advances and we always just thought she was a really chill goat, but it could just be that she's been pregnant this whole time!