twin small sack size can any one help

[scopio]

hi had a scan at 6wks after a bleed and they said i was having twins there was two sacks but one fetal pole and one heart beat they said twin b was only 5wks and twin a was 6wks i have heard you can consive at two different times but this was rare ive got a scan on monday the 6th im a little worried that they are going to say twin b is not there or something has anyone alse had anything like this i am now 7wks 1 day twin b would now be 6wks please help

no experience but thinking of you - just read your post on the Oct 2006 statistics thread. was amazed that you have 4 already and that you were having twins!

Good luck for next Monday

Will be following this thread scopio - Hope everything goes well with the scan - Thinking of you and praying fory ou loads. xxx

how are things today

have seen a few posts l ike this on here scopio.
what it means is that twin b is MEASURING 5 weeks, not that s/he was conceived a week later.
that just means that s/he is a bit smaller than the other twin.
They did the same with me with my singleton... kept saying he looked a week bigger than he was! lol

the measurements they take can be quite inaccurate so don't worry too much! it's very early to be picking things up on the scan (ie heartbeats etc etc) so try not to worry too much yet!