Can a scan at 35w 3d be off by 3 weeks?

[Karen080403]

Hi Annie! I had my third ultrasound yesterday, December 9, which put me to 35w 3d. It gave me a due date of January 10, 2017. As you can see, on June 29 on my 13wks 0d my due date was January 4, 2017 and on August 29 my due date was January 11,2017. Is there any possibility that my ultrasound yesterday can be 3 weeks off? Or it would still put me on the same date of ovulation or conception date you've told me on my first post? Just curious. Thanks much, Annie.

[AnnieBrooke]

Hi, Karen, can you find your original post and add this to it?  It's hard to remember details from one post to the next and almost impossible to try to jump back and forth.

[Karen080403]

Oh okay, Annie. Thanks!