Why tests differ update

[pochontis]

So I had a positive with first response
But negative with clear blue why ?
Any idea

Hi! The first response are some if the most sensitive on the market, I got a positive which looked just like yours at 10 DPO but a negative digital and my strips were very light, a few days later everything was matching.

Best of luck 💕

Thank you gives me a bit of hope x

I believe it's because first response can detect lower levels of HCG I think it's 6 and clear blue is 10. See pic below my tests, 3 different brands all with same pot of wee same day, the FRER is much darker x

Thanks I am hoping to buy another one today and test next week with first response again hope it's as dark as yours then
Thank you 😊