@Charming81 I place very little weight on symptoms, because they are not an accurate gauge of pregnancy. I am pregnant and have had exactly zero symptoms so far.
I would suggest getting the test on Saturday. You can just calculate how much it should be on Saturday from todays results.
so, if for instance, you get a result of, say, 200 today, on Saturday it should be around 1200 ish, if it was doubling every 2 days.
But thats what i would do, if I were you! Obviously, it doesnt tell you how it will evolve after (you can keep testing, I guess), but it will let you know if it is still evolving!!
I get it. Ive been worried like crazy as well, and am planning on getting another blood test tomorrow, as it is 5 days after my official one, to see if things are going in the right direction!