IUD cramps

When I first got my IUD(skyla) I had cramping for two days then had my period, well it's been almost a month but I am not suppose to have my period for another week and I've gotten random cramps maybe 3-4 a day and I've had very little dark brown spotting then the next day white discharge them today back to 3-4 cramps and very little spotting,  is this normal? When I check to see if it is in place it feels like it is right.