Odd. IVF pregnancy here, and even though scans at times disagreed, they ALWAYS took my IVF dates as being exact. I guess different doctors do different things.
well i just recently booked into the hospital im having this baby at and they were going to take my u/s details but apparently the ultrasound was only accurate to + or - 5 days so they took my dates lol so they cant really be too accurate can they
My EDD from scans actually matches my calculated dates from LMP and ovulation... I think only one scan was different by 3days and my OB was happy to take my date
At the hospital I went to they said you "had" to change your due date if the scan was 7 days or more different, so 2 days more than your OB's 5 days. My son measured 6 days ahead so I said I'll keep my original due date thanks (to avoid inductions) and they had to think about it before saying, yep, that was within their "rules".
Prior to having DD I worked in perinatal trials and the rule we used was there had to be more than 10 days disagreement between LMP and u/s dates for us to use the u/s over the LMP (don't collect ovulation dates). Also, we only used the u/s if it was done at <24 weeks. As far as I know this is the same rule the OBs involved in the trials unit used in their practice.
Your OB sounds reasonable letting you make your own decisions. Good luck. I hope you beat the induction.
I only wish we had looked at the dates again before we came so far. Even though I know that I am only five days over 40 weeks because I have been looking at 3 May as my due date for so long I think I have brainwashed myself into believing this date - I actually thought that the 3 May was my date as we have three dates written on our ante-natal record (24/4, 3/5 and 9/5) then when I rechecked it wasn't; it was the date they provided at the NT scan & for some reason I took this on board as the due date.
Funny thing I remember when I was having the NT scan the woman doing the scan asked if we had had a dating scan & I said no, we knew when conception was so we didn't think we needed one. She must have done it then.
I am not usually so easily hoodwinked but the NT scan was a very anxious time for us as this was the time in my two previous pregnancies that we found out our babies had died. I can only think I (we) were so overwhelmed by the heartbeat and good results that we weren't focusing on the dates. On top of that I was very very sick & on the verge of being admitted to hospital so there was a lot going on.
It is good that I did look though before any decisions were made around the date....phew!
i know the feeling of confusion hun, last week my docs realised that they have 3 due dates for me, and they are 4/6, 11/6 and 18/6!!
we had been going with 18/6 but then saw that this was the dating scan, with my dates from my cycle my due date is 4/6. im not really complaining too much as this gives me a greater window before they start wanting to induce me for being overdue but still really inconvenient!!
hope u avoid induction, it would be much better to let bubs decide when to appear!
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