This baby fever has to go away

I'm 17 and it literally had me in tears today. How can I want something so bad when I know it's not right? My dad and I were talking about it (we're very open) and he said I've had an obsession with babies since I was born. Everyone in my family calls me the baby whisperer because kids love me so much! Baby bellies break my heart, and one of my friends is pregnant. It kills me. I want to be with her constantly! She's hating being pregnant and i don't understand :( it's hurting me so much! Does it ever go away?