Hmm, honestly Hun I'm not sure. My first reading was really low with this pg and one of my mc...it really depends on the doubling number (so the second bhcg will tell you more). When is your next bt? Fwiw I had massive bleeds from 6w-30w this time and I'm due in a bit over a week. I've had no bleeding in one of my mc until 11w and discovered a missed mc- you just never know.
Massive , I'm sorry your in this limbo xxx