Pregnant and unsure what to do. PLEASE HELP?

okay, well let me first start off by saying I am a 23 year old mother of two children, This is a very complicated situation and there isnt really anyone in my day to day life I an turn to. I recently found out that I was pregnant.. problem is that I had sex with a boy 2 times and on the latter occassion he didnt use a condom, being that I had been abstinant for quite a while I wasn't on birth control and when I had intercourse I made an appointment with my doctor to begin birth control, well on the day of my appointment I found out I was pregnant... wait it gets better, or worse if you're me, when i said I had sex with a boy 4 times I meant a BOY literally, he was 18 ( or so i thought ).. come to find out he JUST turned 17, he's under investigation for a couple gang participation charges, as well as a arnmed robbery.... his family is rather coo-koo as well as my childrens father, who by the way is going to go BALLISTIC!!!! I had a abortion a while ago and since then had not had sex and vowed to nevere have another abortion, the boy has erased his facebook and changed his number I believe his reasoning was the police rather than me,,,, im all mixed up and have no idea what to do, everyones pushing me to have an abortion and im scared i could face some type of charges,... he told me he ws grown and i fell for it. and now im all alone, he said he would give me half the money for the abortion, but i havent heard from him at all, since a few days after i found out i was pregnant..... --confused in va