Dear Friend, I appreciate your comments and support. I wish I had a better answer but getting healthy just gets you more fertile. And with all of the great work you have done healing yourself and getting super healthy, well both you and your partner should be very fertile.
You are correct, it is time for your girlfriend to get off the pill and the IUD and a vasectomy are not healthy options. Neither is an unwanted child . . .so . . .
the best advive I can give you is for both of you to be very aware of ovulation and then keep most of your sexual intercourse a safe time after ovulation to the beginning of menstruation. During her fertile times discover and experience optional sexual fun that does not include ejaculating into her vagina.
Have fun, be safe and great job with your health.
Dr. Richard Schulze