Buttocks Injections Scar and Assymetry Repair?

40 y/o f had buttocks injections in 2005. Became inflamed and was removed by er drs poking drainage holes leaving major scars and dimples. I would like to correct the asymmetry and reduce the scarring while Adding fullness and volume. Currently 30 wks pg. healthy. Normal weight is 130 5'4. Good health overall. I have pictures but can't see how to post them.