The GHM-ONE is based on a powerful processor which, in combination with a relay card and mains adapter card, serves as the base unit. The base unit can be adapted to applications with a communications card and up to two I/O cards. The number of physical inputs and outputs can be expanded with external I/Oâs. This modular layout enables
Some practitioners routinely recommend an ultrasound at 6 to 9 weeks to confirm and date the pregnancy, but others will only do one if they have reason to suspect any of the following:
The first sonogram will occur at about 8-10 weeks depending on what your Dr. recommends. [ Source: http://www.chacha.com/question/how-far-along-in-pregnancy-do-you-have-your-first-ultrasound ]. More Answers to  How far along in pregnancy do you have your first ultrasound .