Condom sex?

Lizzie

So I got my Kayleena IUD inserted back in March of this year. Me boyfriend and I always at least finish with a condom but is this necessary? I know no birth control is 100% effective but I’m still curious as I don’t know much about people getting pregnant with this IUD. Regardless we probably won’t finish without one as we both are not looking for kids right now but it’d be nice to know if there’s an option of not using a condom. Thank!