Shell - It is most probably nothing, but if it gets worse or if you are really worried about it, don't hesitate to go and see your doctor, or any available doctor.

Well it was scan day today and I'm feeling worse than beforehand It was lovely seeing a heartbeat, (couldn't hear it as we were in Hicksville) and so nice seeing little arms with little fingers waving about, and one of them, can't remember who, had their legs crossed, then one decided to be a bit of a bugger and turn about so we couldn't see much. Awwwwww.

Twin A (RHS)
162 bpm
6.5 cm
1.8 NT
Dated at 12wks 6 days

Twin B (LHS)
150 bpm
5.8 cm
1.4 NT
Dated at 12 wks 2 days

So everything looks to be going along smoothly apart from Twin A's NT measurement, which while being in the normal range looks a bit high to me. Also on the report, she had wrote that there was no abnormalities that they could see atm, but nothing like that on Twin B's measurement.
I now have to wait to get the combined results back. Geeze what would i do to knock a few years off my life.