hi i m 35 week ultrasound report is this...when is my labour pain starts...

There is no indication of labor starting soon. The baby is in the head down position and that is considered favorable for birth. Once the head engages then there will be pressure on the cervix and that will help labor to start.

this is just a fetal growth Scan report and you are away from term. Please readup on what are signs of labor so you are prepared.