I'm confused - I am 52 have had two jabs of AZ the last early June. I thought I would be due my booster early/mid December as that would be 6 months clear of my last AZ jab. I looked on the NHS App today and my 'covid pass' expires on 15 November- does that mean I can have my booster anytime after 15 November?. I know its only a few weeks but I like to be organised and want to be sure that if I am mixing with people over xmas I and they are protected by me having my booster. Thanks