I have my ultrasound coming up, and I have lots of questions. This is my third pregnancy, but I don't really know much about ultrasounds in general.
What is the difference (if any) between the standard ultrasound you get at 20 weeks and the "Level 2" ultrasound?
Are there any resources where I can find more information about intensity of exposure and that sort of thing? I've been searching, but am not really seeing what I need. What can I do to minimize the duration and intensity?