I was quite lucky with scans. I got my dating scan @ 8 weeks, then my 12 week scan and 20 week morphology scan. Because I was involved in a research program I also got a 24 week growth scan and then I booked my own 3D/4D ultrasound (which was amazing!). Then only last week I got another scan as they were concerned about Em's growth. So I had a pretty good run in comparison to the 2 scans I know alot of people get!