I see from your post you live in the US. Goat's milk forrmulas have not been authorised for use in the UK for children under one so unfortunately no advice there but they do recommend vitamin supplements from the age of one to five. Hope this is of some help.
Saraid
me 36 dh 37
1#ICSI Jan 06 BFP scan 6 March
2#FET Sep 08 BFN
3#ICSI Jan 09