It's so hard to say what's going on. If I were you I'd be seeking out a bulk billing clinic today & getting another HCG BT done. That way you could have results as early as Monday or perhaps Tuesday & then have a better idea of what's going on.

That HCG result is def low. At just after 4 weeks and a few days my successful pregnancy was in the 400's. I've had 3 early miscarriages at around the 5 week mark and none of them involved pain - the last two were 3 days of light bleeding less than a period. With the last one I had low HCG levels. I know this is probably not what you want to hear but I think it's important for you to get a balanced view on what the possibilities are.

I wish you the best of luck with it all, but please don't sit around waiting to hear from the hospital clinic as that could take ages. It's just the most horrendous waiting game waiting to see which way your HCG is going to go & it's best to get BT's done as soon as you can.