You were told you conceived on one date by an ultrasound but your lmp tells a different story off by 7 days but than again your cycles are 24 days which is more accurate?
Hello. I would go with the date the ultrasound gave you but
ultrasound dates can be off by a few to 7 days. Both of them are
right. You probably conceived somewhere between the two. Most women
ovulate 14 days BEFORE the missed period, as you have a short cycle
this would mean 10 days after your LMP which would account for 4 of
the 7 days, and even early ultrasounds are only accurate to within
3 days. The exact date would only be important if there had been
two different men, and even then you would need a paternity test as
it would be impossible to tell with such close dates.