Prayer request

Wednesday I went to my 6-8 week check up and they did an ultrasound due to my mc in March. They said they didn't see any growth from 2 weeks ago when I went in and my sac was empty. I'm so confused because when I went two weeks ago there was a yolk sac now it's completely empty. The doc said it wasn't a viable pregnancy and my HCG levels didn't raise how he would expect. I'm asking for prayers because I have no signs of a mc and am still very hopeful that maybe it was just too soon since my cycles are 34-35 days. Maybe my baby is just "hiding" but I would really appreciate all the prayers ladies. Thank you. Has anyone dealt with this?