I had a dating scan done with Noah then nothing until the morphology scan at 18 weeks. That is when we found out he was unwell.
Because I have issues surrounding waiting until the morphology scan, plus the risk of problems, I had 5 scans when I was pregnant with Harrison, although 1 was because of unexplained bleeding and pain around 9 weeks.
I will continue to have dating, NT and morphology scans in any future pregnancies, plus any other's that may pop up.