Getting somoene pregnant without them knowing it's you

here is the thing, there is this girl that i use to hookup with years ago but she went crazy on me, talking about relationship an all that bullshit, at the time a had a girlfriend, she wanted me to leave her for her, hell no that wasn't about to happen, my gf was way to hot compare to her, plus she was a good girl, anyway she went off an get a boyfriend still hang out with me now an then, i fang 2 of her friends in a at the same time, then a couple month ago bang her best friend yea!!!! by the way i cant stand this girl she annoy me to the core, anyway she now have a boyfriend i finger bang her i dot't bang her anymore because she catch herpes from her x lol, so i don't want want to fuck her although she has an amazing body an pussy i have done before but i was luck , oh she doesn't take birth control, she don't want to put anything in her body, so when ever she come to my house i would finger fuck her, turn her doggy then cum into my hand an slide it into her, that didn't work, so i start to masturbate when she is coming round put it in a syringe, then as soon as she get through the door i start to want off on her ass, bend her over and after she is lost in the moment i slinde the syringe into her an empty it, she come over telling me she is pregnant an asking for advice, i told her she should keep it because it's a life, i hope my grammar is not too bad