What Causes A White Discharge Post A Fallopian Procedure?

Hi Dr.I am 38 years n am presently on felopio procedure to unblock my falopian tubes.its my 8th day n I be been seeing white particles after flushing.is there any after effect? I had 4 miscarriages after my second child n since 2013 I be not conceived again.My hsg result showed I had a blocked tubes which my Dr flushed in April last year n since then,I be not conceived .Am so glad I discovered felopio.what dobu say Dr?