I have a very irregular period, I can go months without it and then when I do it can last months heavy heavy bleeding to light bleeding. I had an IUD in for Bout 2 years but took it out and haven t been on any kind of birth control for the last year or so. I have recently been spitting for about a week now and the last two days I have had pink like tissue coming out when I pee. I m assuming it could be just the inner lining but I ve never experienced this before. Should I be worried?