Praying for a miracle

On Saturday I started spotting than it got slightly heavy, went to the ER, had a transvaginal test and some other test, mind is in a fog right now, they were unable to hear the heartbeat, I'm supposed to be 9 weeks and 6 days but baby was only measuring 5 weeks 6 days, doctor kept asking me if I was sure I was 9 weeks 6 days and was like yes although when I was 6 weeks 4 days my doctor told me I was only measuring 4 weeks, I am so lost don't know whats going on how can I have miscaculated that far behind it just don't make since, ER doctor wants me to haveanother beta hcg and ultrasound, I am so heartbroken :( My Christmas baby, had so much hopes and dream for you, my precious little miracle