i know what day i concieved but the doctor isnt going by that. she told me that the baby is measuring 7 weeks 5 days and from the day that i figured i should be 9 weeks 2 days
should i go by the measurements or my date?
i thought that LMP was always the most accurate.
Well the sperm can take up to a week to take hold, so I would go by the measurements. Once you have an ultrasound if they give you an early one, they will be able to tell more accurately, since the changes are significant between day to day development. Then I would go by that day. If they don't give you an u/s it's still kind of a guessing game between those two dates.
an early ultrasound measurement is typically the most accurate - it should correlate to your LMP within a few days
Quoting PurpleBama582:" When was your LMP? "
Maybe you ovulated later. I would go by the measurements if everything looks healthy.