AF returned at 5 weeks post-partum?

tbone_bride

So I had some bleeding issues about 1-2 weeks after I gave birth, turns out it was an infection - had other symptoms - pain, tenderness, fever.  It's since cleared (thanks to heavy duty antibiotics) but I started bleeding this AM with no other symptoms.  Could it be AF?  I've been EBF ever since DS was born.  With DD, I nursed her for a year and AF returned 1-2 months after I stopped nursing.  

What's your experience been like?