brown stuff after period.

My period come on the 9th and ended yesterday and now every time I go to the bathroom and wipe its light brown stuff I wipe away. Anyone else have that happen. I got my 1st period when I was 9 and now I'm 27 and in 2007 after having my daughter I never really got my period but into 2015 I had my son and ever since he was six months all I've gotten my period every single month he's going to be 2 in February.