@WrongTrain,
Why the hell are you staying married? Let alone talking about bringing children into that clusterf?
Because this is massive debt and significant mismanagement of funds, but it is also a bunch of huge lies. What else, pray tell, is she concealing from you?
If you get out now, you might be able to retain a shred of your own credit rating, particularly if you make it clear to her creditors that her debts preceded your marriage. Oh, and if she has fraudulently prepared joint income tax forms and you signed them, guess what? You could also be prosecuted for fraud. So think twice before committing to hanging around and enabling this behavior. Because a serious debt like that, without it being medical or advanced educational debt (neither of which you mention) means a long-term pattern of financial mismanagement.
At best, she is horribly careless with money and possibly addicted to shopping, gambling, or any of a host of other money-sucking activities. At worst, she's been deceitful about funds, probably for several years, and may have committed a few types of fraud, including, as I mentioned, with tax returns, and perhaps check kiting. Because you do not get that far into a debt morass without something else going on.
Why stay?