Professional Maternity pants

I'm having a hard time finding maternity pants that would qualify as 'professional wear' - my work doesn't allow yoga pants and I'm starting to reach the point that my dress pants are uncomfortable. Skirts aren't an option either (I'm on my feet all day and don't have shoes that I can wear with a skirt that don't hurt my feet) Any suggestions on good places to shop for pants I can wear to work?

**I think I'll be able to get away with yoga pants once I tell them, but I'm only 9 weeks and I'm not ready to announce it at work yet. 🙂