I'm sorry, Joslyn! I have to agree with Heather! Just because u can get into one pair of ladies size 9 shoes DOESN'T prove you're a men's size 12 1/2-13! I'm a men's 9 1/2 medium. And, I can occasionally squeeze into a ladies size 10 shoe. But, NOT comfortably and NOTHING smaller!
And, one more thing; Ughs r NOT boots! At best they're apre snow boots and, at worst, house slippers! There's a REASON they're called Ughs! (NOT a typo!)