Why does my body and mind fight?

Why does my brain think about pregnancy but I don’t want kids? I think pregnancy is beautiful and I love to see how the body changes during pregnancy. And even thinking about it gets me excited! But here’s the thing... I don’t want children. Am I the only person who thinks and dreams about being pregnant but doesn’t want children? And this seems to be getting worse with age. It’s like my body is craving to be pregnant but My logical brain is like nnnnooooo way!