Is this a cannula track mark post BBL and how can I fix it? (photos)

It is very difficult to tell through these pictures alone. I recommend you seek out your physician or get a second opinion for a formal consultation. Best, Dr. Emer

Its impossible to tell without an examination. Could be one of several things, and your surgeon is by far the most qualified to answer.

Dear raychelclarkk,
I understand your concern. However, without a proper assessment, it would be difficult to determine what went wrong. It is best that you visit your plastic surgeon for further assessment or ask for a second opinion. Only after a thorough examination, you can get proper recommendations and advice.
Daniel Barrett, MD
Certified, American Board of Plastic Surgery
Member, American Society of Plastic Surgery
Member, American Society of Aesthetic Plastic Surgery