FTM... Period after pregnancy

So I am 1 month pp & im also EBF. Is it normal that I've already gotten my period? FTM here so everything is brand new to me. TMI... my discharge before today was very light & only yellowish/light brown & has been for the past 3-4 days. Today my pad filled up & is bright red. Still smells like lochia, but I'm having period-like cramps.