menstruation after pregnancy

Gusto ko lng po sanang malaman if it is normal...bali ngkablood discharge ako pero konti lng so akala ko first mentruation ko na po un then after nung blood a few hour brown discharge na lng po ung nlabas may case po ba tlga na ganon...breastfeeding mom po ako when i check po kasi sa google once na breastfeeding ka ung menstruation period is vary no exact week if kailan ako possible mgkamens.