Hi sweetie. I am going through the same thing, but I am positive and I have faith! These were my levels.
4/30 - 8
5-01 - 17
5/02 - 25
5/05- 59
5/08 - 177
So I this last time I didn't double but I did get 2-3 wks on clearblue digital. If it helps the NP told me that some women double slower (72 hrs max). So just keep faith. I am going to stop getting my levels monitored because of the stress and just go back in two weeks. I'm sure things will work out just fine! No need to stress about what we can't control. I have never had my levels monitored in my last two pregnancies so I don't know how my levels usually are. Nothing will show on a scan until you are at least 800. Don't worry, you are okay and fine. The fact the digital went up is a great sign. I think you should give yourself a week off of monitoring levels.