accurate dating scan? am confused ! can anyone explain?

[TotorosOcarina]

My last period was 16th July.

By my LMP I am 13 weeks tomorrow,

I had my 12 week sacn today and they said 10 weeks 4 days

How can that be?

[TotorosOcarina]

could the scan be wrong? he looked really tiny

[BellaBearisWideAwake]

Could you have ovulated really late? How long is your cycle usually?

[TotorosOcarina]

Its usually 28-35 days bella.

I think i must have.

I got my BFP on 24th august.

[DrMcDreamy]

As a rule I don't trust scans, I tend to think women know their bodies best. When you think of some of the things sonographers miss on scans when fetuses are bigger (ie missing limbs etc) then I think it is amazing we put such faith in them to determine the age of a fetus around 3cm long. Like every woman, every fetus is slightly different although they do tend to grow at a more or less than uniform rate at this point. If you are sure of your dates (as I was - I only had sex twice the month I conceived and once was literally just after my period finished - sorry TMI? ) then I would probably argue my point. 2.5 weeks is a big difference - especially if you go overdue and they won't induce you until you are 42 weeks (44.5 weeks by your dates).

[Hedgeblunder]

With quite long cycles it is possible you ovulated right at the end!
Can you book a private scan? Maybe it would settle you a bit to get a second opinion?

[TotorosOcarina]

i think its because my sickness has really dropped, and i usually have hyperemesis till 30 weeks

so lack of sickness plus tiny baby is just bothering me a bit!

[Hedgeblunder]

Could you ask for some bloods to be done to check your levels?
I'm hope it's all ok- maybe you just got lucky with the sickness this time!