I've had several scans this pregnancy. By LMP, my EDD would be 19th July. I've been measuring as follows (dates of scan by LMP):
6 weeks: EDD = 21st
7 weeks: EDD = 22nd
9 weeks: EDD = 21st
13 weeks: EDD = 16th (but they only got one measurement, and it wasn't great, hence today's scan)
14.5 weeks (today): EDD = 11th
If I'm really 15+3 (or whatever it is that makes my EDD the 11th), then I had 6 days between start of LMP and conception. That doesn't sound right - my cycles are usually 28-30 days.
Trouble is, my official EDD is now the 11th. DD was born well past her due date, as was I, as was my brother (all 12-15 days over). I don't want to be induced unnecessarily based on one dodgy measurement.
So, questions: are there any pathologies or other reasons that the head circumference should be so out of line with earlier CRL measurements? How reliable is head circumference compared to the other methods?
And is it worth discussing with my midwife sooner rather than later, or should I just wait for 42 (official) weeks and then request daily monitoring?
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Pregnancy
Accuracy of scan dates
13 replies
Spindelina · 21/01/2017 20:32
OP posts:
Rubberubberduckduck ·
23/01/2017 13:40
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