Gosh, do I know how you feel! At 12dp5dt, my BETA was only 50. It did double, but I am spotting. The IVF nurse stated with HCG levels this low, we have a 50/50 chance. She did say she has seen HCG levels low like ours, however, and have resulted in a baby 9 months later. So, there is always hope...the biggest thing is waiting the 48 hours, to ensure they double. Good luck, and try not to go crazy. I am also on the crazy train, and it just doesn't help you at all....
IVF #1 failed 8/06
IVF #2 9/07-anxiously waiting BFP