FTM so please no judgement, okay so I got the 3year IUD June of last year & I haven’t had any issues…

FTM so please no judgement, okay so I got the 3year IUD June of last year & I haven’t had any issues or complaints but when my period comes it starts brownish when I wipe so I assume it’s coming on but then the next day it’s nothing when I wipe or have a pad on so I’m wondering is this normal for it to be faint/so light or not really come on at all or short? Is this a good thing or a bad thing?