The horizontal line will be your coverline. You have to have 3 days of temps above your coverline before it will give you your verticle line which indicates that you O'd. Just because you got a pos opk, doesn't mean you O'd that day. The day after you O, your temp should jump up and stay up. So, it looks like you haven't O'd quite yet, probably will today. Your temp will most likely go up tomorrow. You won't get your crosshairs (red lines) until it's been up 3 days...does that make sense? I don't know how good I am at explaining it lol