Missed miscarriage??

I went for a scan on Tuesday I would have been 8 weeks 3days, I had brown discharge on the Monday evening... I had the scan and they told me they couldn’t see a heartbeat💔💔 and said because I was still having all pregnancy symptoms I was going through a missed miscarriage... they gave me a scan photo and said baby was measuring at 8 weeks💔 could they be wrong please oh please let them be wrong💔 I know I’m just clinging onto something that isn’t possible but my heart is so broken. This is my first ever pregnancy💔