I got the Mirena IUD a good 2 months ago and i have only had some spotting (for which i don't really even need menstrual products but NO full on cramps-so-bad-i-want-to-cry periods. It's sooooo good. and on top of that my chances of getting pregnant are almost nothing. I swear I could be a goddamn spokesman for Mirena I'm so pumped about this.