Even people with normal cycles can ovulate late or early with no explanation, I'd go with November 24th as ultrasounds are more accurate.
My due date according to my LMP is Dec 6, but since my last sonogram I now have November 24th as my due date. I have always been normal on my ovulation
Do you mean due date changed according to us scan date and LMP date or during the pregnancy because baby grows fast?
I am like dianaexoh and ovulated late so had my due date put back 2 weeks after first us scan. I have a friend who just had her due date pushed forward 3 days at 20 weeks because her baby is growing fast.
My due date was changed to 2.5 weeks after what we originally thought. I've always had an irregular cycle and ovulated way late, so the date based on my LMP was inaccurate. The sonogram is more accurate given that it measures the baby itself. The date from that first scan proved to be on track when I went to my anatomy scan a few weeks back.