No more birth control.

Hi. I'm new to the site and joined to become more aware of my fertility cycle. I have been on birth control since I was 15 and recently had to come off my IUD due to side effects. How long will it take my body to balance out so I can have a more regular cycle? I am not actively trying to get pregnant and using protective measures as well. This is why I'd like to have a regular cycle to keep track of.