Clear blue advanced fertility monitor confusion

I have been using the clear blue advanced fertility monitor this month, I am currently 11DPO, no pregnancy symptoms yet except some weird cramps and the fact my temp is still high. So this morning I decided to stick a pregnancy test in the monitor. It came back as not pregnant but I heard these tests aren't the most sensitive. The dip stick has 2 lines though (see below) one very faint. I just wondered what everyone else's experience was with this monitor and the sticks. Do you think this is a good sign? 15 mo TTC #1 so getting desperate lol