Breastfeeding and still getting period, pregnant?

Patient: Im breast feeding my 6 month old. since having him i have had my period every month.with my first pregnancy i didn’t gat a period while pregnant.lately i have been getting signs of pregnancy.i was just wondering what the chances are of me being pregnant while breastfeeding, and still getting my periods every month?could things be different this time beacuse im breastfeeding?