Baby Shower Dress

I live in Ontario, Canada and my baby shower is next Saturday May 13th. I've been looking for a maxi-like dress (preferable 3/4 sleeve or long sleeve) something flowy, to wear to my shower but I've had ZERO luck finding anything except on Pink Blush Maternity, but it's an American site and I don't think anything will get here in time...anyone had their shower recently or has one coming up and has had any luck finding a dress?