Almost 7 months with IUD and cramps everyday for 3 weeks???

Michelle
So i had my period the 23 of may and it was brown at first and it stopped for a day so i took a pregnancy test and it was negative then my period started the 25 and lasted 5 days and since de 20th of may i had cramps since then the cramps won't stop 😷 idk if its normal i'm getting my IUD removed next week. What could it be?