I would look up state and local laws about LGBT rights and also that company's policies, if you can find them. The thing is, it's unlawful to ask a woman if she's pregnant or someone's marital status, so really, it's none of their business at this point. I understand that you might want to be upfront and open, accepted or find out it's not the right place before it matters, but really, if it doesn't matter from a performance perspective, they don't need to know.