As women have the choice to have a physical abortion if they do not want the baby, men should have the equal right to relinquish financial responsibility. He shouldn't be forced to pay for a child (if it is his) that he did not want or plan for. Too many women these days know that they can get knocked up and will be able to have some sap pay their way because like a good guy he will pay to be a fortnightly parent. Welcome to the modern era.
And regarding getting married before sex... you have to be crazy to just marry someone. Hell Anon was dating his ex for 4 years and this is what she does. The hypergamous nature of women means that there is always a chance she will cheat on you or even divorce you to shack up with her new man.
/TRP
Anon I have this simple message for you... don't pay a cent. By the sounds of it there is a big chance that the kid is not yours. However IF that changes and you want to be involved in your kids life then you strategy must change. Move in with her. I cannot stress this enough. If you are living with her when the baby is born you gain immediate paternal rights. Trust me, on this subject I know it all. I have had to pour over the Children's Act numerous times because of my situation. Unless of course you don't to be a dad then by not living with her you can avoid responsibility. Basically you would need to agree that the kid is yours and take responsibility.
But do yourself a favour, do not let this women give you some sob story. If she ends up on the street then so be it, she is not your responsibility. And if the kid grows up without a father then so be it but DO NOT try to be a white knight and be a father to a kid that is not yours because if she can cheat on you then trust me, she can kick your ass to the curb when she feels like it and destroy you.
My back story is that my ex got preg, we moved in together. I paid the birth up front, she kicked me out 10 days later. She didn't tell me my daughter was born prem. I got told my daughter was born 2 months later via lawyers letter. Got to meet my daughter when she was 3 months old. My ex told me she would be registered on my name but she lied and gave MY daughter her ex's surname. Still tried to play my heart, and oh boy was I in love with her. Then in Jan this year I come to visit my little girl and there is her new bf. Haven't seen my daughter since Feb because due to a pay cut I cannot afford everything my ex wants me to pay and she has decided that either I pay it all or I don't get to see my kid. Almost committed suicide over this a few months ago... And thats where my experience comes from.
EDIT: I have no doubt that someone will take offence with what I have said here... remember that offence is taken not given.