When me and my boyfriend started gettng serious I was turnd on all the time we would have sex all the time but now I don't really want to have sex anymore I'm not as turned on as I was. What could be wrong with me ? Would he leave for that? I also can never have an orgasm is it me or what?

Have you changed medications lately? Has your relationship changed?

There are a LOT of factors that go into being turned on, and sexual drive. More information about your situation would be helpful.

This has happened to me before... cept I was the guy. My ex and I went at it like rabbits for about 6 months, and then she... just kind of... stopped. I tried different things... massages... candles... oils... romantic dinners... nothing. Are you having a change in heart over this guy?

Synnen's right, there's so many things that go into this.

Any relationship cools down after awhile! That is NORMAL. Nobody, nowhere, nohow, ever stayed at the fever pitch sexual intensity of a new relationship forever.
That doesn't mean your relationship is doomed, or there's something wrong. Sometimes, however, two lovers will find they've spent so much time focusing on the sex aspect of their relationship, that once it cools down, they really don't have that much in common, or even like each other much! So get to know your guy - who he is, and do stuff together that has nothing to do with jumping each other's bones.
Orgasm problems? Many times the best sex comes with time. Quit worrying about it so much. The more trust, and comfort you have with each other, (which comes with time) the better the sex becomes and grows.
And that being said, sometimes I wonder how many sex lives are substandard because somebody was too shy to say "Quarter inch to the right, please!"

It could be that deep down you want the cuddling and social security of having a man at your side, but you don't have an interest in sex which is passion. I would think you are still young and have a lot of life experience ahead of you... a lot of time to develop your orgasmic neural pathways through stimulation of your passion places... practice makes perfect. :)