Pooping?!

My one week old daughter has not pooped in 5 days. (Formula fed). Basically after coming out of the hospital, she stopped pooping. We kept the same formula was given in the hospital. Her pediatric office told me (at day 2 of not pooping), that it's normal and that as,long as she's peeing fine, all is well.

Now, I know I should trust her pediatrician, and I do. ..I just need other moms with more experience, to put this unsure FTM at ease. ..

Is it really normal? I mean. .5 days no poop? Really. ..?