Am I being childish?

Melissa • Mom~Wife~loving life
Hey ladies I need some advice to help me cope. So a few days ago my best friend told me that she's pregnant. An I'm having a hard time coping because I'm a bit jealous because I want to be pregnant too. I'm really happy for her I am but it just makes me sad an upset. How can I help myself get over this? I'm trying my best to be supportive. But it just hits my heart.