Jealousy?

aleana
So my cousin just had a baby to a 17 year old girl! She delivered a beautiful little boy!! 
I was happy when i found out she was pregnant, of course i was concerned too. But after she gave birth a wave of jealousy rushed over me! 
And i can't help but think what the fuck is wrong with me why cant i get pregnant but i minor can? 
Am i just being horrible?