CleverCl0vr wrote:...go limp & ruin the night.
Thing is that won't ruin the night unless you have decided it will.
Sex is a very complex thing. It's putting two bodies together, and it involved the heart and mind as well. Just assume there will be "problems" at first because there will be. Something won't work, or someone will get a cramp, or something is uncomfortable. It's all part of the process and it's all good.
If you go limp use it as an opportunity to give your new bride pleasure. This would show her you care about more than just your pleasure, and that would be a very good thing.
The first is usually far from perfect. It's exciting because it's the first time, and most guys don't last long because of that, but it's really not great sex. Great sex comes with practice. The key is seeing the practice for what it is and enjoying it for what it is.