Advise please on light brown discharge (TMI)

Kelly

I’m 6 weeks and 4 days. Today I did a lot of walking around today than I normally do. Anyways after I got home I felt some stretching in lower abdomen. It was off and on. Just used the bathroom and still feeling the light stretching and pulling in lower abdomen and when I wiped I saw some light brown discharge. Looked sticky. No cramps with it just that pulling feeling. Anyone experience this? Is it normal? Could it mean something?