The day after I put in my nuvaring, I got a sore throat which felt like strep, then a fever of 102.6, chills and flu-like pains. I could barely get out of bed to take care of my two month old. The next day I was severely moody, excessively hungry, the sore throat went away, but I got a runny nose, chest congestion, and head congestion as well. I couldn't be up and moving for more than 15 minutes before I fell back into bed again. The next day I felt like I had a head/chest cold and same with yesterday. My fever went down to about 100.5, but my nose would not stop running, my ears were hurting, my head was pounding, and I had stuff in my lungs that I couldn't cough up. I looked up side effects and saw that 5-14% of women get an upper respiratory tract infection, sore throat, fever and chills. I took the ring out and by the time I woke up, my head was not congested anymore and whatever is in my chest I'm having an easier time coughing up. My fever has finally gone down and I feel a lot better then I have for a majority of the week.