Trigger warning/miscarriage 💔

Not sure if this is the right place to post but needing some other mamas help. Young ftm here, baby #2 was on the way, I had my ultrasound and confirmed the heartbeat at 8 weeks. Went for my 10 week ultrasound and the baby had no heartbeat. I have already announced the new baby on social media for both my fiancé’s family and mine. How do we go about telling them there won’t be a baby in 9 months? TIA❣️