Is this normal? Pus at T junction: Is there anything I can do before I see my doctor? (Photos)

Dear ilovepizza,this is not that uncommon after breast lift. You should make sure to keep your wound clean. I would suggest you to follow your surgeon's instructions, so use clean dry dressing and Neosporin. Daniel Barrett, MD, MHA, MS 
Certified, American Board of Plastic Surgery  
Member, Am. Society of Plastic Surgery

I am sorry to hear about your concerns after breast surgery. The T junction area, after breast reduction surgery, can be  relatively problematic.  This area is prone to diminished blood flow and/or separation, related to the breast incisions and tension in the area.  Drainage is commonly seen in the area.
  Your plastic surgeon will be your best resource when it comes to accurate assessment and advice.  Hopefully you can see him/her soon. Sometimes removal of a exposed suture and/or removal of any unhealthy tissue will expedite healing.Until then, keep the area covered with a sterile dressing (I recommend the use of non stick dressings covered by a sterile pad in order to avoid further tape irritation ).  You should have peace of mind that these types of wound healing problems generally go on to heal over the course of the next several weeks, often without long-term sequelae. Also important to concentrate on a healthy diet, including good protein source.  Sometimes (depending on the width of the open wound and the appearance of the scar in the longer term), scar revision surgery may be helpful down the line. Best wishes. 

Your surgeon is the best judge as to whether the material being expressed on the dressings is actually pus, or just the mix of fatty tissue and proteinaceous material that gets sloughed through an open wound that has some delayed healing. Slow healing and partial separation at the inverted T location is not uncommon - this is the most likely place to have a healing issue after breast reduction. If you think there is worsening fluid material, redness, fever, pain or a more purulent character to the fluid then you may wish to be seen before your regularly scheduled followup appointment.