HI,
Since you were not using the nuva ring there can be a chance of a pregnancy. However it is too early to tell. Hence you just need to wait and see if your normal periods come on time. If periods get delayed then a home pregnancy test can be taken. Hope this helps.
The answer is based on information provided. Exact advice is not possible without a proper examination and investigations. You are requested to consult your Doctor. Take care and keep us posted.