Post-Partum Bleeding

Hi Mumshies! I gave birth to my baby last February 13, 2019. I was bleeding until nitong March 9, 2019 na himalang nawala yung period ko (the whole day). 2 to 3 days before that day, nagkaka dark red to brownish discharge na ako so I was thinking baka nga patapos na ang bleeding ko which my OB said na magtatagal ng 1 month. However, March 11, 2019.. biglang bumalik yung bleeding and ang pinagtataka ko, naging medyo marami na yung volume ng blood na lumalabas and its bright red. Is it already my period? or I'm still bleeding? I bottlefeed and breastfeed my baby, mixed sya. Anyone na naka experience nito before? Thank you sa sasagot! God Bless!