In my 1st nt scan everything is normal but nasal bone not visible and then next day i go other hospital and do other nt scan and then came nasal bone visible but tiny so due to guideline they wrote in report nasal bone: not ossified

A. It happens over the period when you get the next scan done with a gap but of course a cap should be of at least 4 to 5 weeks and if it showed in a less time that the scan was not done properly did not give accurate results as it was supposed to