hopewas, I noticed my hair stopped falling out after using propecia for only 2.5 months, and I hadn't even started using minoxidil yet (but did get on nizoral right away, too). And now at the 4.5 month mark, my hair is generally thicker and healthier. Started minoxidil 5% 1.5 months ago in hopes of regrowth.
Check my story for pics. My damn widow's peak is thin. I don't think it has really thickened in the sense of growing more hairs, but the hairs that were/are there are thicker, and it shows when I style it. It even feels thicker. I hope to grow new hairs with the big three by the 12 month mark.
I know your story, and you hesitancy to use finasteride. I did experience a decrease in libido for a week. It was wierd, just sitting there thinking "for once in my friggin LIFE I do NOT feel the need to have sex right now". It was kind of liberating, like a weight lifted off of my mind. I could still perform, but didn't really feel the desire to. But it came right back and is as strong as ever now.
So if it happens to you, ride it out. I also think larganine helps with this, and working out/exercising is helpful, too. Possibly balances the meddling of hormones.
Good luck. Keep us posted.