Everybody is different. I was put on Zoloft a couple hours after my daughter was born because I have a history of depression. The Zoloft ended up making me suicidal, it's a side effect that all anti depressants carry.
I'd look into therapy, natural remedies, or even vaping pot like the person above me suggested. Antidepressants do carry a chance of effecting your milk supply or making you suicidal like what happened with me.