So, I've had the Paragard IUD for five months now, and since then I've had long, heavy periods that either come a day early or are right on time. Currently, I'm two days late and have no period symptoms at all. No moodiness, cravings, or cramps. I'm not stressed, in fact I'm more relaxed than I've been in a while. Where the heck is my period? Has anyone had this happen? Should I be worried?