So I have the Kyleena IUD and this is my fourth month/period with it. First months great then this recent time I had my period for 11 days. My doctor said ass long as I didn’t hit 3-4 weeks of bleeding I’d be okay because nothing else was different. Problem is soon and my period ended instartd getting pains like contractions and it’s been about 4 days of that pain. Should I be worried.