Slow growing 7 wk pregnancy 😔

After two ultrasounds a week apart we found that the baby is growing very slow oh, we actually were able to measure a heartbeat on a last ultrasound but the baby is measuring 2 weeks behind oh, and only grew pretty much two days from last week's ultrasound, I'm supposed to be 8 weeks but I'm only 6 weeks 2 days, with a Sac measuring 6 weeks 6 days. I can't imagine that there is going to be a good outcome with the next ultrasound and am just devastated. Anyone have any similar experiences? Anyone have any up strength wisdom or encouragement?