depressed

Morgan
 I'm always so depressed now every since I found out I was pregnant it has got worst? I get these bad thoughts that I will be a bad mom I pray an pray but they never go away .i have nightmares so bad that it leaves me up at night with no sleep how do I overcome this , with it being my first time getting far in pregnancy, I've had miscarriages before but now I don't know what's wrong.