"i got my iud in on 9/30/17 it was the worst pain i&rsquo;ve ever felt. however, i am 18 with no kids. after my doctor inserted it i cramped for for maybe 5 minutes while they took the nexplanon bar out if my arm. no cramps there but maybe because i was focusing on a bar being cut out of my arm!! overall i&rsquo;ve been super crampy for the past few days. ibuprofen doesn&rsquo;t seem to help much either. i get super severe pain when trying to go #2. i&rsquo;ve also been eating like crazy... i hope it gets better because i really didn&rsquo;t like the nexplanon bar and don&rsquo;t want pills or shots."