Baby expenses

My first child just turned 7 and I'm now 9 weeks pregnant. This was a pregnancy we wanted but after looking at target and Walmart at navy stuff I'm kinda freaking out. When did everything get so expensive? I work full time and my husband is military so we are in no way broke but looking at how day care will be, formula once I go back to work (my milk supply was barely there with my first), diapers, necessities.. am I the only one a little overwhelmed and kinda stressed?