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:
A heartbeat can be seen as early as 5 weeks, how ever if the baby is in a funny position it may appear as if there is no heartbeat. That is why most doctors won't do your first ultrasound until 9 or 10 weeks, by 9 or 10 weeks a heartbeat will be visable on ultrasound. posted 10/26/2010 by a BabyCenter Member.