Is there a certain weight you can be that makes NuvaRing less effective

Katie
Hi guys,
​Just read something online that freaked me out! Someone said that nuvaring users over 150 lbs should be using additional birth control methods, but I can't find anything to back that up. Does anyone know if that's true?? I haven't been 150 lbs since sophomore year of high school and I'm nowhere close to that right now! 
​Any answers and help would be much appreciated!!