Hi, in your grandpa's generation, to get some free sex, he would have had to beg, plead and cajole. You get yours pretty much as a matter of course if you just are willing to call someone your girlfriend for a while. (Until you get tired of her and call her a psychopath.) But the price you pay for sexual access is, sometimes the woman you have been having unprotected sex with winds up telling you she is pregnant.
Given that she wouldn't take a pregnancy test in front of you, and you have not heard from her lawyer, and she is claiming she is going to have an abortion but does not want you to be there, the likelihood is that she is probably not pregnant. But just because she is playing attention-seeking games does not mean you should play passive-aggressive games back, by calling her names (unless you are Jay301, Ph.D. specializing in abnormal psychology, you have no the right to call anyone a psychopath) and pretending to "support" her when all you are really trying to do is suss out whether she is really pregnant without asking. Just man up and tell her the truth, which is that her story doesn't make sense to you, and you need proof that she is really pregnant.
A more dispassionate way to handle it, especially if you keep getting tangled up in silly discussions if you talk to her, is to go to a lawyer (or a legal-aid clinic) and get the lawyer to write a letter on your behalf. It should say, in the most humdrum legal language possible, that you have doubts she is pregnant, and that if she is, you have no proof it is your child, and that you require evidence that these are actually the facts. The lawyer should send her the letter by mail, signed-for on delivery. That should be put the kibosh on any little games if she is playing games. (Nobody likes getting letters from lawyers. And it would serve as a reminder that there are legal consequences to bringing a baby into the world.)
I assume that since the unprotected sex with her, you have been tested for all the STDs? Double-check how long STDs take to show up, and get tested in the proper time frames. And do the whole world a favor, especially you. If you want to keep having lots of sex without consequences, and since you seem to gravitate towards women who might make things up and then you not know how to deal with the consequences, remember that condoms are your best friend.