She's not going to sleep with you. When you leave her, she's going to go sleep with some other guy to keep him from leaving her... But, she's not going to sleep with you.
And the amusing thing is, I'm not sure she should sleep with you. You sound a bit desperate and pathetic. You can't even respect her religion and choice to not have sex.
You're not even 17, if you manage to get her knocked up you can pretty much kiss college and any childhood fun you have remaining goodbye. Like I said in your last thread. Don't worry about it, and if God wanted you to sleep with her he'd have told her it was OK to sleep with you. That is, if she even wants to sleep with you and she didn't just use her religion as an excuse to turn you down. I bet she's laughing at you right now in fact for being that gullible...
"Well, then," the Cat went on, "you see a dog growls when it's angry, and wags its tail when it's pleased. Now I growl when I'm pleased, and wag my tail when I'm angry. Therefore I'm mad."