I don't want to be bitter.

Hey ladies. I've been TTCing for baby #2 for 8 months, finally got pregnant but miscarried 2 weeks after. I've had so many women around me announce their second pregnancies and give birth in those 8 months and I'm so happy for them but I'm feeling so bitter. I can't swallow that I've lost my baby yet so many are getting heathy pregnancies and babies. How can I cope? I know it's wrong and I'm trying to stop but I'm heartbroken. I'm so bitter these days.