Thanks Jess! I finally heard back from a nurse and they stated that waiting until Monday would be fine. Unfortunately I wasn't home at the time of the call so only part of my question was answered. I'm still wondering about the converted pattern and what to tell my Tech to look for. As for the thickness my lining on retrieval day the ultrasound Tech at Coo.per said it was "beautiful". I didn't get the measurement that day but it was at a 10.5mm the day of trigger. Can your lining shrink?
If your lining can't shrink and they aren't going to provide better instructions for my Tech, I see no point in getting the ultrasound. I'm 90% sure she will only give me thickness.