Which do you go by? I measured four days different.
If it is only a 4 day difference I would just use LMP which I am sure is what your doctor will do. Most won't change it unless it is a week or more off.
Yeah Rach is right, that's not a large enough difference to matter. I believed that I ovulated a week later than normal and the sonographer agreed that the baby measured accordingly.
Natalie  DH  with the terrible chiweenies Ozzie and Sharon 9/01, 1/06
I agree with pp
]Mariah (35) and DH (40) BFP 8/12/13! Praying for all the APA girls .
I go by ultra sounds... First baby was 3 days late, second baby was 3 days early, third baby was on due date...
I know 4 days doesn't really matter, but in these early weeks (and announcements) I was wondering when to spill the beans ;)
Ultrasound. But I'm either case I would just not think about it till later in pg and be ready for both dates.
Miss T (10.17.2008) Miss A(06.30.2012) Flipper #3 due 06.2014Follow my blog - Creative World Of Varya and on Facebook