Can he ejaculate in you if you have been the iud for almost a year? What is the chance I'll get pregnant if he does???

So me and my boyfriend have been together for 2 years and I have been on the iud skyla birth control since July 2016 and I am sooo tired of the pull out crap I want to know what it feels like when he does cum in me, but I'm worried I would get pregnant the first time.