Internet cheapies positive but FRER neg

Talia • 🌈

Anyone else had this happen? My ebay cheapie tests have a sensitivity of 10miu and I thought FRER was 5miu. I've got faint pink lines on the IC but not FRER (not that I can see with the naked eye)

T

op FRER and 3 cheapes were dipped in same wee, same minute.🤷‍♀️

So confused...opinions?

I am around 9dpo.