This all depends on how you feel about her. If think there is a future with her and she could be "the one" then give it a shot but take it slow. If you just want to hit it one more time then put everything in perspective.
What do you have to lose? Drama isn't worth it. You can't begin to understand how her relationship is going to be with the baby daddy until he gets out. Remember that's his child too so he is going to be in the childs life, her life and your life whether you like it or not.
What do you have to gain? Realistically lets say she is the best you've ever had. You're going to risk all the above for a couple of moments of ecstasy? And you're 19, there are still so many girls out there for you. Don't revisit the past. Wise man once said "Nothing beats strange wool"
Running For Connor - http://www.blowoutcards.com/forums/off-topic/556420-running-connor.html