Yes I want to be married...BUT

It is rather amazing how I can have so many thoughts within one day! You see I just got back from hanging out with one of my best friends...and she was talking about how much she knows i want to meet a nice man and get married in my church and I DO ...but there are things keeping me back... Like my career or something and not to mention the fact that I also want to become a nun or sister.
How would one handle this scenario...You meet a guy right, then you start dating...when do you tell him that you are discerning religious life. If you tell him right off the bat then you know his ass isnt going to stay with you and he will move on to some other lady. IF you wait to tell him then you could possibly be called a liar and be accused of leading him on.

SO my big question right now is....WHAT IN THE WORLD WOULD I DO>>?? I mean, I am not in any position right now to date a guy considering where I am..but if i were to meet one...I would be more lost than my soul!