Intro ~ Help!

Hi! My name is Jessica and I have a beautiful 8 month old girl...oh, and I'm 5 months pregnant! Oops! (birth control baby) I've struggled with depression in the past and after giving birth to my daughter I talked to the doctor and got on some medication (Zoloft). I wasn't sure if it was actual PPD or if it was the fact that she wasn't a great sleeper (still isn't) and I broke my tailbone during labor so I was physically uncomfortable 24/7, but I needed something. Not too long after taking the medication, I found out I was pregnant again. Surprise! This news caused me to spiral into a much deeper depression, but now I can't even take medication. I've been "making it through" for the past several months, but I just find myself in tears often and feeling like I can't breathe. I feel this immense guilt because I don't want to be pregnant again. I know I will love this baby (eventually) but right now, I don't want it. I was just trying to survive with one and now I'm having another. Is there anything I can do aside from medication? Anything you may have tried? I've considered counseling, but I need to see if insurance will cover it. I can't afford it otherwise. Thanks in advance!