Primary Quest Change

My character was in the middle of the prophecies campaign but I wanted to try eotn, can I now switch somehow back to prophecies or?....

You can have more then one Primary quest at a time.

Yeah, you can just map back to where you left off and be on your merry way! And then, if you want, you can pop back to GW:EN territory and do something there. etc. etc.

The problem is I don't have a primary quest there....
Do i need to retake it?

perhaps you did not obtain the last primary quest for prophecies? thats what it sounds like to me.

Or you stopped at a mission. If the next step in your progress is a mission then it's likely that you wouldn't have any primary quests to complete, just get thru the mission and continue on.

Where exactly did you leave off in prophecies?

Yeah, I just checked the wiki and found it,
tnx alot