Teen mom problems with the father advice needed

I'm a teen mom an only 15yrs old. The father of my baby is 16, what do you do when he just left you a few days ago for another girl an he says he loves her an never loved you. An you just found out you're pregnant with his child. What do you do when he tells you to get an abortion an you tell him no. An he wants nothing to do with you nor the baby. And its hard on you because you still love him. Please help an give me advice on what to do.