Spuddles - I know it is worrying, as I am going thru a similar thing. As you may already know, I have been to 3 different Dr's just so I can keep an eye on my HCG levels. As last week Monday mine was only 10, then 2days later rose to 39, then to 86 two days later then Monday my levels were 320. Today I have gone again to see if the levels are still rising.
I am keeping positive as the levels are doubling or even more than doubling, which you shoud try and do as well. Your levels have more than doubled in 72hours.
One Dr last wek said to me, that unless my hcg levels were over 500, in a weeks time then he wouldnt class me as pg. Then told me to think positive. Yepppp sure will after you just telling me that. For me, I just couldnt wait a whole week to see how things are progressing, which is why I went to different Dr's. I have another Dr's appointment on Friday to do another BT, so I am really hoping that today brings good news, and then I have something else to go ny come Friday.

Sending lots of sticky vibes hun and praying, that your mind will be put at ease when you have your next BT.

Hugs