Blood clot from wisdom teeth gone?

I got my bottom left wisdom tooth removed yesterday at 1 pm. I was really worried about the blood clot falling out and so I kept looking to make sure it was still there and it has a white area that is getting bigger and covering the red. But when I looked a little bit ago the white was a little bigger but the red looked gone and there was a little black that looked really deep. I'm having a little bit of an achy pain but it's not bad. I hadn't had pain medicine since noon though and it was only 600mg of ibuprofen. Does it sound like the bloodclot is gone? Or do I have a dry socket?