Its hard to say...my dr calculates by last period until they do first ultrasound then if the ultrasound is less than 2 weeks off they just keep using last period. I would say u were 13 weeks just because the very first ultrasound where a date can be given is usually most accurate as baby can measure ahead or behind the due date (theres a 2 week + or- from the due date. Normally.)
how is it measured exactly, from the day you have intercourse?
I had that happen to me i thought i was 11 weeks and the scan said i was 13 weeks
From what I've just read from you, it seems is wouldn't make sense for you to be 13 weeks. You are definitely 15, especially if that's what your scan is saying.
Then you are probably really 15 week :) they will check again and see of you are measuring consistently. Congrats!
yes Monday Is when i was told the baby was 15 Weeks 5 days
Have they done an ultrasound recently?