Hi there and thanks for your letter
I get many letters similar to your own about being in love and wanting to get married at what is a very young age.
I am sure that you do love your boyfriend very much and I am sure that you are commited to one another, but I suggest both of you must first of all talk to your parents.
I don't think that talking to your parents is about trying to convince them to agreeing to you both getting married.It will be about listening and talking about the realities of such a commitment.
You and your boyfriend are still young and need to be really sure about your relationship.It maybe that you need to spend alittle more time together.
If you love one another a few more months of going out shouldn't make alot of difference. You need to know someone very well before commiting to a life together.
Why not post a message on the sex and relationship ChildLine message board and see what other users think about this ?
Good luck
Sam