depression PLZ HELP

Hailey
I'm a ftm and I think I might be suffering from a touch of depression. I don't work, I'm only 18 weeks, due in Oct. 
Anyother moms fighting it? I don't want to tell me dr., cause all hell do is give me a med to take and I don't want to take any meds. (Bad enough I have to take my thyroid pill). What does it feel like? I'm not even sure if that's what it is. How did y'all get pass it? How bad is it for the baby?