Period After Pregnancy

EKBG1782 • SAHM to Natalie, wife to Aaron.
Do any of you ladies who have already had at least one kiddo notice that your periods are different after you gave birth?
Mine have gotten lighter in flow but seem to last the same amount of days. Sometimes it even completely stops for a day & starts back up again the following day.
Just curious! This month was oddly light for me but still lasted about 4 days. I've heard that periods can change (lighter or heavier) after having a baby. 
Thoughts? Comments?