What is your age? The ultrasound
was taken on which day of the period? Why did you do the ultrasound last year? Since you have the IUD inserted I presume you are less than 45years.
The endometrial thickness of 0.8 cm after the first week of mensus for all women before the menopause
The second ultrasound is reaffirming the same opinion that I have written.
There is no need for you to be concerned.
I hope i have answered to your satisfaction . If you have any further queries do contact me through healthcare magic