Maybe this will help...http://fertilityplus.org/faq/hpt.html If this is right, there are some brands that do 40-50.
I'm a fan of peeonastick.com! :) Similar charts. Plus antecdotes about sensitivity. Not sure I got to 40-50. My last beta was only 28.
Oh well...I'll get a couple of FRERs and keep an eye on the lines. It's more obvious if they're fading or darkening on those. And they're consistent.
It's only two more days. Then we'll have the next piece of info that should give us a better idea of where things are heading.