Quoting Elle With Three &1/2:" We weren't going to find out what this baby is, but if we wanted even a few days worth of outfits, being suprised wasn't an option! The options are nearly non existant."
You aren't looking in the right places. I found several gender neutral outfits when I was pregnant with my twins. You just have to get out of your head that certain colors are for boys or girls. Newborn sleep sacks are the best!!!
You can also do a onsie decorating event at the shower. how often do you really dress your newborn anyway? Not much unless you are leaving the house. Otherwise it is nothing but onsies and being swaddled. They are always spitting up on themselves and having blow outs. There is plenty of time to go purchase cute baby clothes that are gender specific after baby is here. Plus, newborn stage is short lived. Then you can buy for 3months and up.