just wanted to give more support-- my pediatrician says as long as dd isn't straining, and it is the right (creamy) consistancy, then she isn't constipated and not to worry! my lo started off with a bm every 1-2 hours in the hospital, and then slowed to 2-3 a day when my milk came in, and then slowed even more to 1 every 2, 3, sometimes 4 days. it is very nervewracking when there isn't any bm, i know, but don't worry. breast milk has much less waste than formula, so babies tend to absorb every little bit of it, and it takes a while for there to be enough waste to produce a bm. good luck in your search for another dr!
hth,
julie