Hi, I am 26 years old and I weigh 165lbs. Have had 3 miscarriages and 2 live births by cesareans on April 11, 2009 and April 16, 2010. I am currently on the Mirena IUD. I have been on it since September 17, 2010. I bled from then till this February 2011. I didn't bleed again until September 9, 2011 for 4 days, then again October 9, 2011 for 4 days. Then in November I checked for my strings and couldn't feel them, when I used to feel them monthly until September when I had this cycle. For the past two weeks I have been having cramps in my left ovary and I have been haiving sore nipples. Should I worry or take a pregnancy test, or should I just contact my gyno.