Anyone help I should have been 12 weeks 3 days yesterday as had my usual 12 weeks an last week and was measuring 11 weeks and 3 days but at the private scan I was 13 weeks exactly yesterday so not sure why it's a few days out but it's only a few days but anyone on another forum I've been told boy nub but it looks so girly to me as inline with the spine? Any experts help me please?