How long should you be acquainted with someone before you start seeing them exclusively?

I've been talking to this guy for a month now. We both really REALLY like each other. When we first were introduced to each other, we instantly clicked. I wanted to take things slow and do things right so we just barely had our first official date even though we hang out as friends in a group setting every week.

I wasn't looking for a boyfriend. I wasn't looking for love or attention or anything like that. I was really really happy and content with how my life was before I met him. And then he came into my life and just made it even better. He added to my happiness. He's the kindest guy I've ever known. He always has a genuine smile on his face and greets everyone like they're his best friend. He says the sweetest things that anyone has ever said to me. He's always concerned about my well-being and wants to make sure I'm safe wherever I go. On our date, I was feeling very sick as a combination of period cramps and too much food. So he hugged me and pulled me close and offered to take me home so that I could lay down. He makes me laugh and smile and loves me for who I am. He knows when I'm upset and knows exactly what I need to be comforted, even when I haven't told him I'm sad. I have a bad habit of bottling things up, but somehow he makes me tell him everything right away so our fights don't even last very long. I don't understand how I got so lucky. I don't think I could get any better than him even if I tried. I didn't know I needed him until he walked into my life. I don't want anyone else.

So, what advice do you have to offer? Is a month still too soon to be in a relationship?