What will happen in the futur?

It's odd. He is so strange, I can't recognize him. In the last days respectively the last weeks Sam doesn't speek to me often and we didn't spend so much time together anymore. All the time I didn't want to disavow that Sam was bored of our relationship. But now I realize that Sam doesn't love me anymore. The situation has changed but I still love him and I don't know what shall I do now.
But the worst is yet to come. I was waiting for my period all the time but I hoped everything was all right. And then I heared that Sam was going out with another girl. Directly I got jealous. After I was three weeks to late I know that I was pregnant, but I didn't know how to say it Sam. I decided to tell it him at his 16. Birthday. I sent him an message that I want to meet him. We met at Starbucks. He wasn't really surprised. I wanted to buy with him the pregnant test and he agreed. As I went home to get more money he ran off. I was shocked, I didn't believe that and I just felt lonely.