Something similar happened to me, also, unfortunately, when I was pregnant and didn't need the stress.

I was working at a fast-food place which shall remain nameless and had arrived in town to live with my bf with very little cash on hand. The store manager loaned me the money for a deposit or my first month's rent or something on a disgusting, run-down apartment that was all I could afford. One morning when I went in to open, the manager came in and accused me of stealing the previous night's cash receipts and fired me. I asked her how she could prove it and she said she knew I did it because I needed money and she didn't need any more proof. I had another paycheck coming, and she took what I owed her out of my paycheck before giving me what was left of it! -- which, apparently everywhere but the Wild West, is called loan-sharking.
I'm really sorry you're going through this. Some people are just evil. I hope you get it all straightened out.