Thanks Hopeful - I know massive surge! However, looked back and a few times before my temp has been that high on 8 DPO/9DPO (although not with such a dranatic increase). Will be very interesting to see what temps do over the w/e. Think I will give in and POAS though as have party tomorrow....(any excuse!!)
I love the fertile phase - as someone said here before, you actually feel like you are in control for those few days.
MrsPTTC - sounds like you need more info, but hopefully not a huge problem x
Crumbs- off to check your chart now.