So I've been on skyla for almost 2 years.  And I haven't really been regular . But always had a period that lasted 3-4 days but they were light. Okay well this past 6 months I haven't had nothing at all.  I kno I'm not pregnant cus last time I had sex was about 8 months ago. And I think if I was pregnant I would be showing . But nope I have a wash board stomach no symptoms of being prego. I took a pregnancy every 2 weeks and negative. Is it normal not to have a period that long??