is there any hope???

Mi • Mother of two babies in Heaven 👼 and an August 2019 toddler 😍❤️😍🙈
Two weeks ago I had an ultrasound and we saw the baby's heart beating so fast. It was measured as 6 weeks and 3 days. Yesterday we had another ultrasound and it measured 7 weeks and 5 days (should be over 8 weeks now) and there was no heartbeat 😭😭😭 I can't stop crying. I had absolutely no signs of miscarriage. My doctor told me to wait a week to see if I'll bleed naturally or if I want to have a d/c. She didn't say "this is 100% a m/c" but she said all the time "it doesn't look good at all. I don't have a good feeling about this. We'll know for sure in a week" 
Is there any hope??? What do you think?
I've been trying to conceive for over two years. I miscarried three months ago at 5 weeks. I can't go through this again.