Is this implant extrusion?

I had a breast augmentation on July 2 ; saline under the muscle, 475 ccs left & 575 ccs right. I developed a seroma had a second surgery on July 22. The doctor took the implant out cleaned everything and put it back in. The doctor also took cultures and placed a drain in. Cultures were negative. Yesterday I noticed a black hole in my incision with light leakage. I'm going to the doctor tomorrow but I am stressing. I've been through so much with this breast and I don't understand why I'm having so many problems.