Go with the naturopath!!! My sister sees an acupuncturist for some serious endo type symptoms with her period...and has really, really postive results. I also had the pleasure of a naturopahtic doctor living in my house for 4 months last year, and using the knowlege she gave me, I firmly believe it was responsible for my most recent pregnancies and a reduction of my kidney disease from "moderate" to "mild". As for my pregnancy losses...i think they're due to clotting, which you do need medical intervention for, but for the getting pregnant part...she was invaluable.
Naturopathic medicine sees the body as a whole - and instead of reactively treating a conditino, they (like traditional Chinese Medicine) strive for getting the body in balance so it can operate cleanly and naturally, the way it should. Their opinion of disease is an imbalance, and once you get the body balanced, things fall into place.
Its extremely powerful - I even had a tooth straighten out in the fall after I did a serious detox and cleanse under her supervision - it had started to shift out of place when during my diagnosis of kidney disease, and now its back into place. The reasoning behind that is that our teeth coorespond to different body parts/organs...and the tooth that moved was in line with my kidney function. As my kidney function improved, my tooth moved back. It hurt like the dickens, but it moved. Very odd.
I know I'm babbling...but just wanted to bring it up because its SO powerful.
I'll also agree with the other ladies - go with your gut