Mary, thank you for your kind compliment.
Nomio, but you had the perfect chart rise! Honestly, there's no mistaking ovulation with that pattern of sustained progesterone elevation. Don't sweat, missus, you are not broken 
It's lovely for you to say I'd make a good nurse or whatever. I wish with all my heart I had gone into the caring profession, but my life took a turn towards teaching and so my degree (which I failed to complete due to alcoholism) was in Education. I was sacked eight years ago from the school I worked at for hitting a year eleven pupil. He was 6'2", fat and the most insufferable wanker I had come across in four years of working in classrooms (and I have largely worked in pupil referral units with extremely challenging behaviour).
Anyway, he was bullying a lad in a wheelchair and I lost it. I was sacked for gross misconduct and, although there were no police charges, my CRB now carries a warning to prospective employers that I cuffed a pupil and caution should be taken if prospective employment involves working with children or vulnerable adults. 
I cannot tell you how this devastated my life. My future as a teacher in ruins and my two-thirds- completed degree a pointless financial burden, I turned to drink. The day I arrived home from the tribunal I went to the shop for a small flask of vodka and drank it neat. I never stopped drinking after that
Sorry for the offload. It makes me immensely upset to this day when I tell this story, but I am always being asked why I don't work; why I haven't made anything of myself; how wonderful a writer I would be, blah, blah, blah. The problem is I have zero confidence in my ability to resurrect any semblance of a career and, if I'm honest, I suspect my eight years in the wilderness of unemployment has been a subconscious penance for my 'crime'; I don't think I will ever get over the shame of losing it like that with a pupil.