Help: FRER sensitivity - 2 days later lighter

[CarolinaMom]

Hi, tested positive at DPO+7, today I am DPO+10. 2 days ago I used a FRER and it was positive. This morning it was much lighter than 2 days ago.

additionally I am testing with OneStep 25 every day. It was a cheap big pack. It is every day a bit darker.

now I am worried because of the FRER. I had a biochemical pregnancy 6 month ago.
Has anyone experiences with the FRER tests?

 

[Krysta]

Your urine could have been diluted. I wouldn’t worry if the one steps are getting darker- that means your HCG is increasing.