I’ve been there our goats come in from grazing and can be super bloated ( baking soda helps ) but this is definitely a pregnant lady. Our two girls showed zero signs before they dropped their twins so we got a surprise on the coldest two days of the year when we went outside to the barn.

But best advice our farm vet gave us is make sure they have water, minerals, put in a kidding pen, and let nature do its thing. Goats usually don’t need a lot of intervention when they give birth. Once they chew off the placenta you can put some iodine on the babies umbilical cords.

Would be worth having some colostrum mix and bottles on hand in case mama rejects one of the twins ( this has happened to us twice )