Separated and Pregnant... Need Advice PLEASE!

Hello, I have been married for 4 years and just discovered yesterday that I am pregnant. I should be overjoyed as my husband and I had been TTC since we were married in 2009. We already have a 7 year old and were desperate for a sibling with no luck. Although, unfortunately my husband and I have been separated for about eleven months now and I was just about to have the "I don't see things working out between us speech" only to discover I am pregnant. We separated because we have had so MANY issues with honesty and responsibility since tying the knot. My husband lies to me about nearly everything. Two summers ago I asked him to leave for several months because I discovered he had been pretending to attend college for an entire semester, making up classmates and even assignments, so he could work as a barista with his friends part-time rather than get a full-time job to provide for his family. I was willing to support him working part-time while he earned his degree as I already have an MA and felt it was his turn. I couldn't believe he could lie directly to me for months on end. I thought we would never get back together but after a while and some very serious conversations he PROMISED me he would be honest and I took him back. Although, that was probably his most elaborate lie, there have been many many many others. Some insignificant and some not so much, like when he was fired from one job and told me he was laid off and would receive unemployment. This was not true. In fact, he was fired for cause and sat around for 6 months doing nothing "waiting for his unemployment" even though he knew it was never coming. I could go on and on but instead I will get to the point. Last summer, he was going through his "I hate my job" routine again looking for me to tell him to quit. I refused to do so. It was a good job and I feel sometimes adults have to do things they don't like to provide for their families. So rather than following my advice of stick it out, he quit behind my back losing our health insurance and of course not telling me. To cover it up, he borrowed money from his dad and our savings to pretend to be paid. Apparently, he had also quit paying his car payment and within 60 days they came to repossess it. Believe it or not, his workplace also shipped all his stuff to him the same day. So his entire facade came crashing down within hours and I asked him to move out and filed for legal separation. Since filing, we have had many conversations about getting back together. I have told him many times until he can hold a decent and respectable job (he is currently working at a dollar store) and see a counselor about his inability to be honest with me there is no hope for us. It has now been eleven months and he still has no car, is living with his dad, and working at a dollar store. In a moment of absolute weakness a few weeks ago, we were intimate and I am now pregnant. I don't know what to do. I feel self imposed pressure to make this work for the baby but I also know that I will only grow more resentful of him as time passes. I should have been more cautious, but after years of trying to get pregnant, I just never thought it was going to happen for us. I haven't told him yet, and to be honest have no idea what I am going to say. I know he is going to think this is his ticket back home... but if I take him back now with none of the changes made, this entire year of being apart was for nothing... Any thoughts or experiences would be so helpful. I am so confused and would love some advice.

Put the internet to work for you. via Personal Recipe 2629979