sounds like hes an immature ****!
when you've given birth get someone to FORCE him to the hospital, he HAS to see his child,he has NO choice, and until he does this confusion hes going through wont disappear. once the baby becomes a reality he'll have to start thinking straight. theres a good chance he will fall in love with his child in which case your both going to have to be mature for the baby's sake.
if he still doesnt want a part of it then squeeze as much money out of him as possible.
if you can, form a good relationship with the rest of his family that way your baby will at least have its aunites,uncles,grandparents ect from that side of the family.
your ex needs to know that after the baby is born you have 6 weeks to register its birth and if he isnt there when you register then he wont offically be the baby's 'father' instead it will be left blank,if he knows this then any desision he has will have to be made within 6 weeks.
my sister was in a similar situation,her ex turned up 3 weeks after the birth and was there at her registration,needless to say he's hardly a father to her at all now shes 6 years old, and he also has a son he doesnt see!. my niece has a wonderful 'daddy' though, who she now knows isnt her biological father, but shes not bothered, because to children as long as they have enough love and care thats all they need.
my father was terrible and i always wished he would dissappear when i was younger, he did when i was 14 for 2 years and i was so happy then, we get along fine now but it just goes to show that some people were born never to love a child and YOUR baby doesnt deserves the hassle of one of them in its life.