Are you living together at the moment? And if so how long for?
I knew I wanted to marry my partner the first week that we met, we're so very right for each other and know that our relationship is special.
We've only been together about 16 months, but moved in together about 6 months ago. I've found our relationship a lot more stressful with living together, seeing each other 24/7 working, cleaning, cooking, sharing. And we live with my parents, so we don't have to worry about bills!
Although some people get married within 3 months of meeting, I think it's too soon.
Like others have stated, you still haven't learnt everything about each other.
You'd need to talk to him (and maybe your family) about the future, and when is the best time.
And marriage is just a piece of paper, no-one needs marriage to prove that their relationship is strong.