Maybe I ovulated???

I might have o-d on CD 28 (Tuesday), but my temp has not gone up very much and it's only dotted crosshairs (Fertility Friend is unsure). Plus, if I change the detector from FAM, then no o is detected. This happened last month too. Of course, D was tired and not in the mood last night so no just in case. I'll try again tonight, but I'm not too hopeful. I need my temp to go up to at least the high 97s so I'll know I o'd and can start on my progesterone. I hate that my body must continually screw with me. I don't feel like I'm ever going to get pregnant. I have very little hope lately.