What do we really believe when it comes to miracles?

I know that some people believe that the time of miracles are past. Then others say that they still believe in miracles. As always the floor is open to discussion to your thoughts on this topic regarding why you think one way or the other. To me you can look at the bible and see the difference of living under law, and grace. This is when the bible divides from the old testament to the new testament. But where is there a division of the things in the new testament no longer being part of the walk of faith? The only thing I can find where there is a change is after Jesus comes back for his bride and the gift of the Holy Ghost is not longer given unto man. Am I reading this right or have I over simplified the facts. You tell me.