There is no need to wait for a few cycles before trying to get pregnant after having a copper coil removed. You can remove it whenever you want and start trying to get pregnant immediately.
Before trying to get pregnant it is a good idea to start taking folic acid and possibly vitamin D and to start thinking about your well being in general including thinking about diet, alcohol and caffeine.
Folic acid should be taken at the recommended dose for 2 months before you get pregnant and for the first 12 weeks or pregnancy. Vitamin D is also recommended for some populations.
You can see more information about preparing for pregnancy here: