taking different medications

So I'm on the pill and I'm going to the doctor soon to get an antidepressant.. I just want to know if anyone else has been on an antidepressant and birth control pill at the same time? Did it make your mood worse? Did it counteract your birth control pill and made it not work? I'm going to ask the doctor these possibilities but I want to know if any of you ladies have taken both at the same time. My boyfriend and I use condoms as well so I'm not worried about pregnancy but I am worried that the two will counteract and my birth control won't work anymore.