Hi, I Just Have A Question About Nuvaring.. I Just

Hi, I just have a question about Nuvaring.. I just recently found out I am pregnant, but I am using the Nuvaring. I don't want to tell my boyfriend now that I am pregnant but I am sure he will notice if I am not using the Nuvaring. Is there a way for me to use a fake Nuvaring until I tell him or make the Nuvaring ineffective so that he doesn't get suspicious?