Due Date Drama

mommyoffour • Hello iam 35 yr old mother of four 12, 8, 1 and 8 months its a rollercoaster but I wouldn't trade it for the world I love my fantastic four😍❤❤❤❤
I went to the doctor yesterday and I had my ultrasound done now iam 18wks 4days but the ultrasound says 19wks 3days my doctor said it's because my son is big and it won't change my due date so iam lost am I 18 wks or 19wks??????????