And how early was the ultrasound? If it was before 8 or 9 weeks, you can rely on it for determining a date of conception pretty closely. The calculator would suggest conception was around April 3, or somewhere between March 30 to April 7.
from the early ultrasound it was the 25 of december
Hi, Samantha, do you have a due date given to you by an early ultrasound? It's all very well to count from the first day of your last period, but it would be better if you had had an ultrasound in your 7th week or so.