I check my bbt in bed first thing every morning. It's only been 11 days since I got my bbt thermometer. I don't know my cycle day or when my period is do because my cycle is just crazy. I lost my thyroid to cancer last June so I naturally have a low temp. I know everyone has a very different bbt chart, but I feel like mine is too different? Does it look like anything has happened so far? I guess I'm just not sure what to look for. Please help if you can!