17 pregnant with a girl

Hi, this is my story.

I had a boyfriend and I loveed loved him. He was the one. We were at his football game and he made a touchdown and won the game and we stopped at a motel to stay the night, me not knowing that he was dating a girl younger than me and not knowing she was my best friend. Then we stayed the night together in the motel and something happened, I am too scared to say. So you know the next day was prom and we went together and when I went to the bathroom, my boyfriend started dancing with my best friend. When I came out, they were kissing and I left pissed. I went home, had a hot bath, and went to the bathroom. The next month was my check-up. When I went to the doctor, he said I was pregnant and that I was 1 month pregnant. Then when I went home, my boyfriend called and said he was on his way over. When he got there, I told him I was pregnant. Then he left me all alone to cry by myself, and on my due date, he said I was a b*** and I had no right to be with him.