We had our scan today, I thought I was 12+2 but have been dated at 12+6, bringing our due date…

We had our scan today, I thought I was 12+2 but have been dated at 12+6, bringing our due date forward to 9th June. Baby was very active, was on tummy when we first seen them and they then moved round to on their back. Next scan has been booked for 19th January but we may get an early gender scan on at 16 weeks (23rd December). I'm thinking this baby will be a boy too ? Any thoughts on gender? X