Having my 2nd trimester ultrasound on Monday morning?

i am so excited,my doctor scheduled my 2nd trimester genetics screening ultrasound for early monday morning..but my husband just started a new job this past week and for the next 3 weeks he is on probation, he can't be late,leave early,or miss any work unless it is an extreme emergency. so my sister in law is going along with my 20 mth old son..i know that i will probably get several pictures for him,,but do you think it might be possible for the doctor who is doing it to possibly give me a video of it as well? i cannot wait to see my little peanut, and maybe get to see whether it is a lil Jonathan or a little Olivia...