How Do I Tell if I Have a Hematoma After Breast Reduction? (photo)

I had bilateral breast reduction/lift and minimal underarm lipo done on Monday. The bruising was quite severe (and yellow) days 3-4 and on day 5-6 I started to develop a red/purple colouring above and below the incision along the bottom of my right breast. The right breast is definitely more painful than the left but not particularly more swollen. I'm worried that it's a hematoma but no amount of research can show me what a hematoma LOOKS like. Is this normal? I've included photos.