Can NuvaRing cause cervical cancer

The studies suggest that it increases the risk of cervical cancer, and more cases of Cervical cancer surfaced during the studies. However, they are labeled non-conclusive. I have personal experience, though. I have cervical cancer with a negative HPV test

• meaning I do not have HPV but still managed to get cervical

cancer. I used the NuvaRing just under a year ago. I have no other causes for it - I do not smoke, I am not overweight, I do not have a weakened immune system, etc. The only factor that I had was the NuvaRing. I am not sure how doctors go about linking a diagnosis with a cause but there is not a doubt in my mind that this was caused by the NuvaRing.