I stopped about 3 days ago--I took my temp, was relieved that it was still up, and then thought, what's the point of doing this? What is it going to do for me besides give me one more thing to worry about? I got a darker line on a pg test and that made me feel better about things and feel like the pregnancy was getting established. (Also, I'm nauseous as all hell, so that's a reassuring, if annoying, thing.) So I'm done charting for the time being.