envisioning pregnancy...

This is kind of a stupid question, but do any of you/did any of you ever feel like you just can't/couldn't see yourself being pregnant? I go through periods where I think being pregnant is so cute and would be super fun (minus the unpleasant side effects, obviously) and I get major baby fever and then I go through periods where the last thing I want is to have to raise a child. But even throughout those times when I get excited about the thought of having my own kids, I still can never envision myself actually being pregnant. It's kind of starting to make me wonder if being a mom will ever be in my cards, which is kind of sad, but I'm also in that phase of not really caring about having a child... so idk... 

(Sorry if any of that is offensive; I know it can be a touchy subject.)