When should I start to worry about my iud. I’ve had it for a few months and it was great the first three now my period is lasting longer the 7 days and I’m having cramps that are slightly worse then usually. when my normal period only last 4 days with out bc. I’ve had this happen where I had to get off nex. Due to simply having a period for 3 whole months and the second time I got it I got my period for 1 month before I removed it. Idk I’ve never had the iud and just wanna be careful and sure within my body