sorry your having this stress Maruschke- I know this feeling so well, staring at the tests over and over.

To me, the last two tests look either the same darkness or the last one is slightly darker. For a BHcG of 82 I think that is fine. Everyone is different, I don't think you can call it yet,you will have to wait it out ( I know thats *****), fingers crossed for a massively sticky bub
You are pregnant babe, with a good Hcg so try to go with it.