Is this my period? (After labor)

Brianna • Calvin born Septemeber 15 2016

I'm almost 4 weeks PP, I had little pain since labor and got a few stitches.

The first 1-2 weeks I bled and between the 2-3 week it was mostly a mucus with some blood in it.

Today I'm almost 4 weeks PP and am actually bleeding again, is this my first period or is it too soon and still from healing?