If the child is indeed yours; do you feel any paternal instincts toward the child?
Follow advice and demand a Paternity test.
If the child is your offspring then it is up to you whether or not you want to contribute.
If not yours then there is no moral issue nor obligation to do anything.
The best possible protection in these matters is a condom!
Think about that in the future.
I have only been around here 9 years off and on' but the story sounds familiar.
Russell
You say: "if the child is yours then its up to you whether to contribute" WTF .... I always thought we are not dogs or chicken, maybe I am wrong , I don't know, anyway sex by hand is better than sex with condom