Caution: kinda sad, but I need advice.

I really don't know how to deal with this right now, and I could really use any tips at all. So recently I was pregnant for hardly any time at all, and I had barely even realized I was pregnant before the biggest(and longest) period of my life happened. So, I just had my first miscarriage and I guess I'm lucky I wasn't further along. But, I just don't really know how to deal with this. I've been insanely depressed and really distant with my fiancé and I feel awful about it. I found out I was pregnant and pretty much the next day miscarried. I don't even know if it would be considered much of a miscarriage at all, in comparison to what so many other women have gone through. I didn't even have the chance to tell my fiancé I was pregnant and I feel awful about it. Is it better or worse that way... I don't even know how I feel most of the time. It's just insane mood swings all day and crying any moment that I'm alone. How do I even start to deal with this...