Help..??ASAP?

im 16 & pregnant! im with the baby's father but our relationship is not like before. I just come to his house every weekend & when i dont have school. lately he's been actin real different. we had an argument a week ago and we was throwin me out his house at 3 in the morning. i of course didnt leave but he said that he hated me and everything and he never said that to me last night we were talking and i told him i wanted to go to florida and he took it a little bit too seriously and started sayin he hated me and he he hit me on my forehead twice..and i have a red mark now and it was because of him. i dont kno what to do anymore i really want to be with him but i cant take his b*lls*** anymore and i just dont know how to let go until he decides to change bcuz he is really hurtin me..