Trying to decide what to do... Long!

My husband and I have been TTC for 2+ years. We got pregnant in October but sadly it ended in a MC. I have never wanted nothing more than to be a mom. Lately my job has been extra miserable, in the 5 years I've been with this company I've been sold twice, laid off twice, merged 3 times, moved buildings 4 and had 4 name changes.... it's ridiculous! I make decent money for someone who doesn't have a degree and my only other work experience is waitressing, I can't seem to find another job that will pay my rate. I hate this job so much, the new management has been here for a week and it's like a compelete take over, I was a supervisor now I'm just a CSR again and they have changed everything!! I'm also worried about being laid off now for many reasons and nothing to do with my work ethic.. It's just too much for everything that I've already been through. I can not afford to take a pay cut as my husband is unemployed because he went back to school full time (this is something we decided on together after I was promoted to supervisor) but I also can't stay here anymore. I am becoming bitter and depressed from the stress of this place, I think it has a lot to do with my increasing anxiety... my husband and I have decided to not stop TTC, regardless of what happens with my job. We have tried so long already putting it on hold would be heartbreaking! What I want to do is go back to school myself to become a nurse (I'm already in medical field now)... but I'm not sure I can juggle a full time job, TTC (and if we get knocked up!) and nursing school all at once. I'm not opposed to working hard. I just don't know if it's too much to take on.