Thanks Janeo... no I did not do anything abnormal to cause the temp rise. I have been really good with taking it at the same time in the morning, as soon as the alarm goes off. I have been under a load of stress at work, but that's nothing new!
Yes, I'm really hoping that it does turn out to be a mistake. I have long cycles, so it just feels like you have to wait for ages when you miss an oppotunity.
I wish I'd taken a leaf out of your book and not temped this month!! I would feel a lot less stressed then!

thanks anyhow matey...