I'm looking for winter pregnancy shoes that are comfy AND warm

My question for current and future mamas out there: what are the best possible shoes I can buy for safe, comfortable winter wear during and after my pregnancy? I'd love to find something that can be worn all day, and even better, something that I can wear in front of co-workers without getting the "oh, you adorable pregnant creature, you" face. I'm not necessarily looking for specific shoes or boots, just styles and shapes that mamas before me have found to be friendly for potentially size-shifting feet in less-than-perfect weather.