WTF😩

Ladies, help me make sense of this chart. I am VERY good about tracking normally, although this cycle did have a few days where I forgot. I wake up at the same time everyday and always take my temp first thing before I even sit up....Has anybody else had a weird up and down like this? Did you ever find out why. My man has been deployed so sex/pregnancy is not even a remote factor, although lack of sleep could have been??