Hi ! Period issues post delivery are somewhat common now a days due to hormonal changes, life style etc, esp if u had or have PCOD. Need not worry about that unless u have associated symptoms like fever, chills, pain in abd etc, etc, which indicates post delivery infection. Just observe and try to analyse with ur previous cycles i.e before pregnancy, if ur previous cycles were nrml and u r obeserving this for 1st time, then might be due to hormonal changes that have taken place post delivery, if the bleeding doesnt stop in a week, u may need to consult gynaecologist. If u had history of disturbed cycles then it will be restored again after delivery.