whats the first period like when it comes back?

I have this brown blood ,its not heavy but its all brown. I thought it would have been like the old days. Now I am just worried that its something else? This is my first peroid after giving birth 6 months ago.

brown is old blood is it not ? i am cramping a bit and I have an itchy fandoddle (sorry i cant think of a nice word lol) I have cream for that. I thought something was going on in my body as i was getting spots, greasy hair and sore.