Notes for editors. 1  The National Infrastructure Plan has been developed by Infrastructure UK and represents the UKâs first ever infrastructure plan for the UK. The Government announced at the June 2010 Budget that it would publish a National Infrastructure Plan in autumn 2010.
1 By the 22nd day, the heart starts to beat. 2  Your baby's neural tube begins to form. 3  This becomes the brain and spinal cord. 4  By the end of the first month, your baby is about 1/4 inch long.
Fetal cardiac activity can be seen by 6 menstrual weeksâ gestation, and the fetal brain can be seen by 8 weeks. The crownârump length can be used accurately to assess gestational age within 4 days up to approximately 12 weeks.