I was wondering if hospitals let you take pictures of any ultrasound home? Also if so how large or small are they-what are the sizes of the prints? ?
It definitely varies by hospital. We went to a ultra-modern Chicago downtown hospital, and didn't receive any sort of video recording (nor did we have the option of such). What we received was printouts on tape (very high resolution version of cash register tape, the kind that is printed on with heat imagery). Black and white pictures (which is consistent with a regular ultrasound), nice looking, but not video. 10cm square sounds about right.
We did two ultrasounds (as do most people nowadays), one at 12 weeks to confirm it wasn't ectopic, and one at 20 weeks for various diagnostic purposes. We got some pictures during both appointments. During the second one they take quite a few pictures, and if you have a friendly tech you should get several good looking pictures there (including the 'boy or girl' picture at that appointment).
I recommend asking your OB/GYN during your 8 week appointment about what you should bring, if anything; if you don't have another appointment prior to your ultrasound, call your OB/GYN's receptionist, she/he can likely tell you.
As others have said, the printouts are small black and white squares. Most places will let you take a few home. Once, I only got three, another time, I got close to a dozen. 5" square (if you aren't into cm's) approximately. Here's a warning (which is is probably common sense but I'll make no assumptions): these need to be protected from heat and light. I had a few that got ruined within an hour in the car on a warm spring day (heat) And another has not stood the test of time -a decade- on my mom's fridge under normal conditions (light being the culprit here. Or, the noxious fumes from her cooking... ;-P )
Hey, if the tech turns out to be ultra stingy, you might try snapping some photos with your mobile phone's camera (paparazzi style). The quality will be about the same.