I have my 16 week scan and first consultancy appointment booked next week. I'll be 15+2 then I have my twenty week scan booked when I'll be 20+2. The guidelines say that I should get an 18 week scan as well and fortnightly till 28 weeks. Should I be pushing the consultant for this? Our local ultrasound department is overstretched and understaffed so I kind of feel bad.