Thanks Brettgirl! Did you get any peaks or just highs? I think the pack says it gives up to 5 high days, but have now read that the first month or so some people have had up to double that. Hopefully I'll get decent fertile signs this month (I don't always get them, while the monitor gets used to me. Frustratingly (did I already mention this in OP, can't remember) the monitor keeps telling me it needs cleaning, right fromt he first day I used a test stick. It only shows the symbol for it immediately after removing the stick, but not at any other time. I did try cleaning it as it says but it made no difference. I'm going to phone the helpline tomorrow, and am just hoping I don't have to send it back and have a new one sent out, as that means it might still not be completely accurate next month. Sigh!