Does this sound like first period postpartum

Give birth almost 6 weeks ago and confused if my period has started. I have normal postpartum bleeding for the first 4 weeks after birth then week 4 it was very light mostly brown and a

Would sometimes get a bit of pink. Then at the end of my 5th weeks I had about 3-4 days of yellow and some brown and then for the pass 3 days I had nothing and was so happy thinking my postpartum bleeding was over. Today I started getting more red that same like it's starting to become a ligh flow like when you are starting a period but idk if it is or my postpartum bleeding started again (I hope not) do guys think it's my period returning (I'm 6 weeks tomorrow and combination feeding mostly breast milk but supplementing with formula