How many bottles do I need to register for? I'm getting the medela pump and so far registered for the medela storage kit, an 8 oz medela set of 3 with slow flow nipples, 50 medela pump and save bags & 100 NUK bags, and a playtex newborn bottles with dropins gift set with slow & medium nipples. I also heard I should get a hands free pumping bra. I guess I'm just overwhelmed with all the bottles & supplies. First time mom :) any suggestions or is this all ok?