Zaks, I am quite sure that working would enhance your self-esteem and self-confidence as well as improve family finances. Child are quite adaptable and the majority of moms throughout this country work without any damage to their children for doing so. A happier mother is an asset to her children.
If you sense that you will ultimately leave the marriage--then having employment is a very good move, in my opinion.
Also, consulting a lawyer to know what your rights are (fact finding ) would be another thing for you to consider.
dandylion