Yeah good as long as you don't use them too early, have you still got the leaflet from the box? Should tell you the sensitivity in that I can't remember off hand love, I don't know what's going on with me, temps are a bit rubbish, but always I'd be spotting by now unless pregnant and no spotting at all. So confusing but as I had a chemical last month it could be another, I get late, faint bfp's with a cp that fade v quickly xx