12 week scan!! which date do i use?

[Teeki]

How did you get the 12 week estimate? Generally earlier scans are more accurate so this one could be a bit out, but if you were charting and everything and you're pretty sure of ovulation and conception dates, I'd say what you've worked out yourself is probably pretty accurate. Does that match up with the scan (seeing as your LMP does)?

[Kittytat]

thing is i have been confused about dates from day 1, as i assumed going off my LMP i was 7 weeks, so got a scan that day and they dated me at 5w4d, so we went off the 5w4d, going off that i am 12 weeks today and then i had my scan today and now they have put me forward to my original dating from my LMP so 13w3d. it is so confusing! hope that made sense???

[Teeki]

Are your cycles very regular? Like could there be a good chance you ovulated later and that's why it came up as 5w4d?

[Kittytat]

no my cycles are very regular! that's why i was confused when they put me back at the first scan!
With everyone of my pregnancies going off my LMP has always been correct! i don't know!

[Teeki]

Ok... So if the first scan never happened, you'd have thought all along that you're at 13w3d. Is there a chance the sonographer for your first scan made a mistake? Wasn't very experienced? It's just that those early ones are usually more accurate, but seeing as you've got definite dates and the second scan matches them... I dunno!! Lol sorry I'm not much help. Could you take copies of both scans back to your GP and see if they can see if one of them is out on dates?

[Kittytat]

yeah my doc gets copies but i don't see him for another 4 weeks. to me it would make sense to go with my LMP which matches this latest scan but i guess i will have to wait and see! lol i am just impatient. there is a chance the first scan was wrong, as with my scan today she checked the length/dates a couple of times and was the same every time. i dunno!

[KimB]

I would go from your LMP. At least you know that is accurate.

[Teeki]

Lol you poor bugger, makes it very confusing!! Personally I'd go with the dates that match your LMP, you seem pretty certain about it. And then if everything else from here matches up with those dates stick with it. But I suppose in the back of my mind I'd have the later dates too, so I don't get too stressed about going overdue. Good luck!

[onthefly]

I'd go with your LMP in that case - doctors just often trust machinery more than women's bodies...
At least the other date is the 'right' way for you - you'll proably just end up going early compared to their dates, rather than getting pushed into an induction.