This pregnancy I requested to have one early b/c of my
miscarriage last time and they got me in at 8 weeks which is the most accurate time for dating. I had
early u/s for all of my pregnancies except the one I miscarried and I lost the baby at 9 1/2 wks but I was 12 wks when the u/s couldn't find a heartbeat. Try asking for one or just pretend that you're clueless about your last period and they can't deny you an u/s. A little white lie for a big piece of sanity. Good luck!