Diapers.com, AmazonMom, etc. - sign up while pg or wait until baby is born?

I want to register for all of the websites to get coupons/discounts. Do I sign up now at only 4 months pg, or wait until baby is born? Do they only give coupons when you first join, or continuously?

Which are the good websites to join?

Thanks!

Re: Diapers.com, AmazonMom, etc. - sign up while pg or wait until baby is born?

You can sign up for the parenting magazines, that's where you get the coupons for Amazon. BabyTalk & American Baby are free subscriptions, and I believe they have coupons. Parenting the Early Years and Parents magazines also have the coupons, but they're paid subscriptions.

Re: Diapers.com, AmazonMom, etc. - sign up while pg or wait until baby is born?

I Would wait to join amazon mom bc you get 3 months of amazon prime free (free two day shipping and other perks), which gets extended for a month with each $25+ purchase, up to a year. You will appreciate the free two day shipping when you are running low on baby supplies and you will be needing diapers/wipes/formula for more than a year.

Re: Diapers.com, AmazonMom, etc. - sign up while pg or wait until baby is born?

I would wait too because the coupons expire and usually within a month or two so you may not get a chance to use them and they usually send more when you first sign up or around your due date for those that ask about due dates.