Only after you have had the baby,
why doesn't he think it is his? Is he just scared of being a father? Does he have reason to think you have been with other guys? Could you sit down and discuss these things?

Are u guarenteed hes the father? Those things can be expensive... You can always like go on maury?

There is one test that you can take before the baby is born to determine paternity, however I can't remember the name. Ask your ob/gyn, but the test will be costly.

Amnios can determine paternity before birth, but they're too risky....Especially when you can just wait for the baby to be born.

There is a blood test thing that can be done...But it's pricey. Upwards of $900 dollars. If you know in your heart it's his child and can't afford the test then don't worry about it. If he wants to be an ass, tell him to pay for it or get lost. But only if you're absolutely *positive* it's his child.