Hi and welcome! This is a fabulous board full of tons of support! I'm so sorry for your loss and can completely relate as my m/c happened with a "whoops" pregnancy. Same as with you, we were instantly thrilled so were devastated when we lost it. My doctor advised me to wait 3 months before TTC, but as I am 37 I didn't want to wait at all so we started TTC after I got my first post-m/c AF. Unless your doctor gives you a valid medical reason to wait, you should be able to start when you are ready emotionally. I had also heard that you are more fertile after a m/c but so far that has proven to not be true for me. I hope it is different for you and you get a BFP right away.
On a side note, I am originally from Montana and lived right outside of Bozeman for a while when I was a kid. I live in Maine now, but Montana will always be my home. It is the most beautiful place I've ever been.