To be blunt... Yes, it would be dumb to have a child right now. I know you think you've got "something most people won't ever have in a lifetime" and you both think you'll be together for the rest of your lives but according to another post you made just minutes ago you were broken up with him recently and just now got back together. It doesn't lend much credibility to your claim of knowing.
You've been with the same boyfriend since you were 16 and know little else. Both you and your child's welfare will be tied to this person who is likely to be about your own age is not likely to be incredibly mature or responsible (tho I my be wrong, I don't know him).
Do yourself and your future child/children a favor and at least get through college and start a career before even getting married. Get an apartment, learn to budget and then try to budget for yourself and a child, including something a lot of young people never think about until they're struggling with kids, insurance. When faced with the potential reality of what it might be like if you happen to be wrong you might put more serious thought into the matter before making a decision that is irreversible and has long lasting consequences.
I disagree with wight13. Pray to god and ask him if this is the man for you. If it so is the answer he shall give, marry him and love him with all your heart. The church encourages children and family growth. If god wills it (which he does) He shall help find you methods to live.
Although that does state, count on god. We all must, you also must think for yourself to. Be careful in your proceedings. A child is a lot of work. Ask god for help, only he can give you your true answer with a blessing.
if you start straight away you will miss out on you and him time to grow and be with each other in a married life, find the kinks and work through them. being with some for 3 years and live together is very different.
that my 2 cents, and you should as the LORDs 2 cents.