Late period?????? With iud uhhhh

Okay, so I have a copper IUD. Have had it for a few months now. My period is late by 12 days and it’s usually that late whenever my bf and I have sex around right before the period. I was ok until my bf said “you got the copper one to make sure you keep an eye on your period for this exact reason” and now I’m like high key scared.

pregnancy test? I still have to do one.

Anybody have similar stuff happen to them? Oooh! Also, I have period cramps without the period...?

UPDATE: LOL guys I got my period😂 it was just pushed back so much because of the sex. It sounds strange I know but like every time I have sex, my period gets pushed back