No heartbeat

Jemma
I went for my first ultrasound yesterday and they couldn't find a heartbeat, either with abdominal or vaginal ultrasound.
I have another ultrasound in a few days. Some people are telling me to keep hope, that this happens sometimes and all works out fine...
I'm doubtful as I'm meant to be almost 11 weeks but baby measured only at 8 and a half weeks.
I'd love any advice or info anyone has to share please. My second miscarriage this year.
Thank you 💜