Stress fracture??!?!?

I am a fifteen year old girl HS XC & Track runner. I was disagnosed with a pelvic stress fracture five weeks ago, and my doctor expects that I will be able to join my team in another 5. I was on crutches for four weeks. I swim about a mile a day to stay in shape. I am concerned about my healing time, because everything I've read online claims it take sometimes 6+ months for these stress fractures to heal. My pain started in May and I was diagnosed in August, however I've never had pain unless I was running or doing hamstring stretches. Can anyone give me advice about my healing time and my specific stress fracture (pelvic bone) ?