had my 20 week scan last week, scan seemed to go fine and was told everything looked good. I was told on the way out to book my next scans on the way out- growth scans at 28, 32 and 36 weeks. Is it normal to have this many scans? This is my first baby and as far as I'm aware everything is straight forward so don't know whether this is something to be concerned about? Any advice welcome- I'm not seeing the midwife again til 25 weeks so thought I'd ask here!