So I suffer from clinical depression, it's cyclical. It tend to stay at bay when I am keeping things organized but I am feeling a bit of the baby blues. Also my bf is a new dad and totally stressed so we have gotten into 3 big fights. Our son is 6 days old. I'm am worried the baby blues is going to meld into ppd and possibly trigger my Clinical depression again.

How can you tell when it's baby blues or when its developing into something more serious?