Hi there! I am actually a teacher too! I teach in an online school that allows me to do my job from home. We do have the option of receiving benefits.
I did not take note of what state you are in, but maybe try calling your dept of ed and see if there are any online programs in your state.
I am so sorry that you have to go back to work. I had to go back and complete my contract when my first child was 6 weeks old. It was easily one of the most difficult things I have ever done. I hope that you are able to find some kind of alternative. <<hugs>>