So I'm on my third year with Mirena and at my second year I would have Cycles every two months and then I have Cycles every two weeks and now for the last two My Cycles have been coming late and very bad cramping and abdominal pain and back pain and I don't know if it possible pregnancy or my IBS and I never went past 10 days and with this I am 15 days late with 18 days is for the next cycle to come not sure if I should take a pregnancy test or just wait with three years in my daughter will be 5 in November of 2018 so I got it late so April of 2019 is what should be removed was placed in April of 2014