My co-worker looked a little pregnant, so I asked her when she was due.
Why would you ask a co-worker that?
I figured that's what good co-workers are supposed to do...
It's okay to make casual conversations with co-workers, but you shouldn't ask about a pregnancy unless you are absolutely certain. Someone might appear to be pregnant after putting on weight, and you could really hurt her feelings by pointing out how noticeable it is.
I guess. I never thought about it like that before.
That's good, you should refrain from asking anyone if they're pregnant as not all women even want to talk about it until they are ready. I am glad you're learning from this.