Copper iud

Got a copper uid last thursday, a ballerine.

The day after i got it, it was some light bleeding that eventually stopped. As expected.

Then suddenly, on the 3 day mark I suddenly started bleeding. Like fresh red blood. Now on day 7 and still bleeding, even if maybe a bit less than previous days.

If I work out it seems to bleed more.

No fever, no bad smell.

Any advice? Is this normal?