Being "aroused" by a big belly? (Embarrassing)

Ever since I was young, I would obsess about being pregnant, unlike other girls who obsessed about their wedding. I even had a lot of vaginal discharge when I would pretend to be pregnant by putting a pillow underneath my shirt. At the time, I had no idea that it meant I was "aroused". Even now as an adult who is 3 months pregnant with my first child, I get a lot of vaginal discharge by looking at my growing belly. I've just always wanted to have a baby growing inside me. It's weird. Am I alone in feeling like this?