Where do you shop??

Wondering if anyone has bought maternity clothes yet??
I'm looking for shirts that will hide my bump for another 2-3 weeks until I tell people. So far, my pants still fit fine....But finding shirts has proven to be a challenge! 
I went to a Motherhood Maternity store today in search of clothes and was disappointed! The only shirts I found either hugged my growing bump or looked old lady-ish.
I'm 27 and have to wear dress clothes on a daily basis. When not wearing dress clothes, I like to be comfortable but cute. Where can I shop??? Any recommendations are greatly appreciated!