Peruod Question

Hey breastfeeding moms! When did your period come back, and did it feel different? I stopped bleeding about 3 days after my 6 week check up, and now I started bleeding again. I think it may be my period but I'm not sure because its not as heavy as my period was before I got pregnant. Still have the other symptoms cramps, gas, etc. My son will be 2 months on the 21st, and he is my first EBF baby. TIA!