When I was pregnant before, I used FRER when got positives. They were always undeniably stark white when negative.

With my wondfo's, when I test, it feels like there's a 50/50 shot on whether I'll see "something" where there should be a second line. It's depressing! Yesterday I had two tests where I could see something (I only took them cause stressing about why I haven't had a positive OPK), then third one was stark white.

I feel like most HCG wondfo's are duds lol