How do I??

There is a boy at school called cian.he’s 15 and I’m 14. I used to go out with him for about 2 years till last december. I have only just realised I’m pregnant by him. Hes now still at my school but don’t talk to me. My best mate is about to ask him out. He is really good with kids. He’s got a little sisters who he babysits all the time. He tells me everyday he still loves me and wishes we were back together. Is there still a chance for us??.I don’t want to under any circumstances get rid of the baby bcos I’m totally against it!! And I’m agaist adoption so I’ve got to keep it but I don’t know how to tell him??