How can a 16 year old make money fast?

I am a 16 year old guy that needs 155$ as soon as possible well at latest next tuesday i have got all the money people owe me. all my friend's are stoner's so no help there i have no savings cant spend any time doing any real work because of exams this week and well the reason i need the money is my girlfriend is pregnant and I'm stuck trying to get money i cant get a full legal job i.e.. a cashier because of my criminal record and i would like it if there where only serious answers so how can i get the money for tuesday and the money for the kid (she is going to keep it and I'm not that much of an asshole to ditch her)