I have had periods and my last one was very light. I have been on the nuvaring and I put it in a little late in December. I think I am feeling movements like fluttering and a rolling sensation at or just below my bellybutton. I have gained 6 or 7 pounds and I have a little belly but I could just be chubby. I also have larger sore breasts that feel full, now I am having tingling nipples with that "letdown" feeling I had when I breastfed my son 12 years ago. I took a test that was negative and I am embarassed to call the doctor if I am not pregnant. There are other symptoms like urinating every couple hours, low back pain, heartburn, and I was feeling neauseated a couple months ago where I would make a plate of food and then have to throw it away. Am I crazy for thinking I am pregnant?