Since there is no future with this guy, terminate and do not tell him. You never know if he would be the type to try and get a court order in order to force you to carry the child to term. Simply telling him could result in your entire future changing....Worst case scenario, he takes you to court, you are forced to have this child, and he gets custody....but it doesn't end there because you'll likely think about this child every single day of your life, it will effect everything you do from this point forward. You'll have to explain to new partners that you got preggo and the guy forced you to have the baby, and that it has put an incredible emotional burden on you. Ok, so maybe you think all of this is a stretch, but if you're determined to terminate and see no future with this guy, there is no point in telling him you are pregnant.