Do you think it's selfish, that I don't want to be involved in raising a child from a one night stand
Are you seriously thinking of abandoning your child. Why did you even have a one night stand?
I just want to have fun, at this time I felt that was the only way to get it
Despite how the child was created, you shouldn't abandon your child from a one night stand. You should be taking responsibility for your actions.
I know, but I don't have time to raise a child.
Everyone says that, but then they find time. Your child will need  both of their parents around. You wouldn't want to let down your own kid would you?