I agree with suzanne I would give her a shot of Fortified B Complex and if she dont need it it wont hurt her or the babies...some antibiotics can cause birth defects and lose of the preg. I would just watch her and goats are smart and can tell sometimes which is good and which is bad hay and wont eat what dont taste good. Mine are very picky and if tis not just right they dont mess with it. If she shows signs of polio or listerosis then you need to treat but hopefully she was just snooping and not eating the bad stuff.