What Causes A Delayed Period With Milk Discharge From Breast?

Hi, may I answer your health queries right now ? Please type your query here...

                         i had a baby 16 months ago. i breastfed till she was 10months old. she is 16months now and still wants to nurse so i let her. now i have milky discharge from my breast and i am 2 weeks late on my period what could be wrong. my i lactating again causing my period to stop? or my i pregnant?