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confusion over ultrasound

Quick and simple I went for my US on the 13th feb 2014 it dated me 9 days ahead at 13+1 where I thought I was 11+6, changing my due date from the 29th Aug 2014 to the 20th Aug 2014.

Last period was the 22nd of Nov 2013 give or take a few days, lasting 5 days, normal symptoms. My period before was definitely the 20th Oct for 5 days, also normal symtoms. The only difference in these two periods is that I started the pill just after the Nov period, but forgot it for around 5 days in a row after taking the first pill.

Any ideas on this would be great, as I am very confused. As it seems I must have ovulated early in my cycle or perhaps forgetting of the pill caused an egg to be released sooner,

VERY CONFUSED!!!!

(Notable sex was had the last day of my period in Oct which was the 26th and the day after being the 26th, then 3rd 10th and 17th of November, then my period and sex then on the 28th and 30th and more than likely in between these dates more in Nov. As far as I can work out I would have been fertile around the 8th, then having sex just after and before, but that would make me 2-3 weeks further ahead in my pregnancy.)

Replies

  • Hi Aimee,

    sorry you're   feeling so confused. I've been moved on both this time and with my daughter, and with her I knew my dates were right. 

    But those swimmers can hang around waiting for a few days, so even if you didn't have sex the day the scan says you ovulated, it could have been from a few days before.

    Plus, the way I look at it, all babies can't be the same size at 12 weeks, they're all different so they use the scale for dating but it can't be perfect for everyone, I'm sure.

    xxx.

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