Sorry you are having to go through this. I know how difficult the not knowing can be. I wouldn't give up hope yet. HCG can change from time of the day to the next. I've had hcg test twice in one day before and the numbers changed quite a bit.
How many dpiui are you?
I've had IUI on 05/29/07.
You'll just have to wait it out which, I know, is incredibly difficult. I have heard though where HCG can initially start off not doubling but then pick up. If the next time you test and the numbers double in 48 hours you'll be good to go!! Again, there are lots of success stories where your situation sounds very similar. Keep us posted:)
It is still really early then. Try not to worry too much. My RE said they like to see around 100 at 14 dpo and yours is right around that. Some people implant later than others so that can also affect your initial numbers. Hang in there. :)
I'm really trying to stay optimistic but is soooooooooo hard!!! We've been trying for almost 2 1/2 years...and undergone 3d IUI which looked soooooooo promising!!! Now I started having some cramping which feels like AF is on her way. I'm trying ladies I REALLLLLLLLLY am but goosh it's sooooooooooo hard!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! I thank you all for the support.