What can I do about my N400?

I think the question everyone has is why you stayed with this guy while he was potentially cheating on you? Was his ex already pregnant when you met him? Or did she get pregnant while you two were together? Did you disclose this on your 2009 application? Because, how it looks on the application is that he was with her the entire time you two were married since the next kid was born last year. There could be a perfectly good explanation, but it looks like, well, fraud. They are not great about keeping the website up to date, so don't worry too much about it. It is probably going through supervisor review. At this point there really isn't anything you can do. But if they deny it, you only have 30 days to appeal it. This is where you would submit any evidence to support your N-400.

There is nothing you can do at this point, except retain an immigration attorney who would know all the details of your case and be ready to intervene immediately if things turn ugly. Hopefully, your application will be approved, and all the worries will be for nothing. But, as the old adage goes, one should hope for the best - and prepare for the worst.

Your greencard application is likely under review. If a finding of potential marriage fraud is found you will want to retain an attorney to assist you.