4D scan help please!!!

So we are booked in for our rescan this afternoon after attending 2 days and my baby was just not showing her face at all we got one picture and she covered her face and hid well in my pelvis.

She is extremely low and has been head down since the 20 week scan I am now 29 weeks and I am convinced she is engaged.

How can I encourage baby to move position or at least get active. I had a fizzy drink and some sweets and she still didn’t perform.

Advise wanted