"20 week scan"

I attended the maternity unit for a 20 week antenatal scan last week, and was very pleased. They were 20 minutes late seeing me, but I saw a far nicer nurse than for the 12 week scan which more than made up for this. She apologised for the delay in seeing us, I felt confident that she was competent, and she was friendly and happy to answer all of our questions. We were delighted to get a clean bill of health for the baby, thank you.