PP stitches/pink mucus

JY

5 weeks pp, and when I wiped I got some pink mucus discharge, this is also the second time I get pieces of my stitches. I stopped bleeding around 2 weeks pp & the lochia stopped as well. Is this the start of my period? Or could it be caused by my stitches? They don’t hurt or look infected. I’m bottle and breastfeeding if that matters.