Just got back from ob visit. He rang lady at ultrasound for info. She told him, that yes the baby was measuring small for dates and placenta was thin and long but she actually think we have what is called a mosaic pregnancy. Where the placenta has the wrong number of chromosomes and the baby has the right number. She said she really doesn't think it can be related a positive result for tri 13/18/21. It is possible however that the irregularity on the placenta could have affected the NT result.

Ob said that if it is a placental confined mosaicism, they recommend you continue with the pregnancy but have 18 week scan for an physical abnormality, he also said that bubs appeared perfectly fine on 12 week scan.

Yeah We still have to wait for amnio in 3 weeks, which will hopefully go in our favour.
He also said he thinks I have a localised bleed due to the large surface area the placenta takes up. As no evidence on the scan.

Little less worried now, a big thankyou again everyone for your help and kind words.

Clarexxx