Preparing for loss…?

I’m 6 weeks 6 days measuring 6 weeks 1 day. I was measuring 6 weeks exactly on Tuesday. FHR went from 96 to 108 in three days but only grew one. I had one hcg draw my first that rose 61% in 48 hours other than that it’s been doubling. I’ve kind of had that bad feeling since that beta draw but tried to remain hopeful. The NP said there’s almost 50% space between yolk sac and gestational sac and this right on the “cusp of being viable”. I’ve been crying all morning