Briadmaids Dresses

Hey I have no clue what to do about my briadmaid dress.... Like a couple girls arent the skinny so i need to talk that in to account and i have no clue about the color i was think light brown and ivory but it in march is that color all wrong and i dont know any really i am 19 getting marry and my friend cant really help cause they are like all 19 too plus my parents arent a big help.. Can some one help me ad point me a good place to go for good dress but cheap? i live in western mass so anywher in there of ct is a good thing for me