Thanks for the query.
After coming out of the intrauterine contraceptive
you can have withdrawal bleeding.
Possibly that was your first flow.
Then after removal of IUCD, it will take some time for regularization of the hormonal
That may be responsible for the altered flow in next cycles.
After removal of IUCD also, side effects can persist for few days.
So possibly the symptoms will subside soon.
If not once consult gynecologist, get examined to and rule out pregnancy
and take symptomatic treatment.
For more details you can ask me directly through the premium forum.