Looking for some advice. I've had the mirena coil fitted for 3 years with no problems at all, until yesterday where I had some light spotting and same today. I've been expecting my period since the 1st and it's not arrived as of yet, I have been experiencing stomach cramps/ twinges with lower back pain, I put this down to period being due, but I've noticed I've been going to pee more often, I haven't had sex since the 26th of March is it possible I could be pregnant? 