Are you new to ebay - I mean zero feeback? That will sometimes keep people away from bidding when it's a newbie. Do you accept PayPal? I usually only bid on auctions that take PayPal because I don't like to send checks or deal with money orders and I get some level of protection with PayPal.
I've never sold or bid on baby clothes so I'm not sure what more you may need to do but those are basics. Is it possible your starting price is too high?

Also, I typically "snipe" and bid at the very last moment so maybe you have some of those waiting.