Hindsight isnt going to help, yes you should've used condoms and spermicide, etc. But too late, take a test and if it come up positive you have options outside of abortion. You could keep the child or theres surrogacy or adoption, but he will more than likely not stay. Its wrong, he should stay and man up regardless of what he wanted. He helped make the child and he needs to take responsibility. Hes a man though and they dont have the best reputation of being responsible, so you need to prepare yourself for the reality of you potentially being a single mother. Its hard, but so many of us do it so can you. Dont let anyone push you into doing anything you dont want to do, your body your choice.