I don't know if anyone is a member, but it's like RuLaLa, only for soon-to-be Mommies (that's you, BP!) and baby items. They often, though, have tons of stuff for women only.
Right now, they have stuff from Blush Lingerie for a great prices- negligies for $22, bras for $15, garter belts for $12, adorable undies for $10 and up, etc. If you are doing B-pics, or are looking for goodies for the honeymoon, check them out!
The sale goes until tomorrow, Monday, April 11th.
http://www.zulily.com/invite/bwashburn212