OK, you grew a pair since last night. Good. But don't over do it, either. Firm is fine, threatening isn't necessary.
I think the fact that she took the child away without warning is worse than that she had an abortion that you didn't object to.
Your wife just sounds very immature to me. She wasn't ready for marriage and a child so young, and now she is trying to relive what she thinks she missed. Either way, you are better prepared than she is for a divorce. I think a job and a lawyer trumps demanding mediation and running away with the child.
