? Help ?

My boyfriend and I are both 20 years old. We recently had a baby girl in October 2013. After I quit breast feeding I asked to be put on the birth control pill. In June I had to be put on antibiotics, we did have sex during this time not aware that the antibiotics would stop the birth control from working. We recently found out I'm pregnant again, he was excited at first, but now he calls the baby an "it" and says he's doesn't know if he wants the baby. Am I overreacting by being extreamly hurt & mad at him? Is he acting the wrong way about this?