ProMatris OPKs?

[Mrs Eleflump]

I've used opks on and off as an addition to charting for a couple of years while I was WTT, and am continuing while NTNP/TTC.

I just use ICs, usually 'One Step' brand, but my latest batch are 'ProMatris' and they seem really wonky to me. They stay stark white negative for ages and then suddenly one evening there'll be a positive, while the One Step ones will show a gradual line progression.

Anyone else experience this with this brand, or have I just got a dodgy batch?

 

[katherinegrey]

I'm using these at the moment, I haven't had a positive yet but I'm only on cd 12 so there's still time for me, so far I think they're okay though