How do I get through being pregnant by a friend?!?

I had an abortion when I was 19yrs cause I wasnt ready, emotionally and financially very ignorant back then, the experience was for me very traumatic, eventually split up from the babys dad and I decided to get a coil (IUD)a couple of wks later. I remained single and abstained from the past two yrs (the abortion messed me up). Ok, so I met this 30yr old guy (I shall refer to him as J) just over a year ago through a friend, I was 21! We got to knw each other and had unprotected regularly. Anyway, a month after our ual relationship began, discovered im pregs... I was absolutely gutted and considered another termination! I was at the same time really scared cause of the coil, I went to the doctors, had a scan and discovered the coil had ended up in my womb... booked another appointment to have the coil removed. I fell in love with my baby the second time I saw him and heard his heart beat, I chose to carry on and even though theres a risk of miscarriage! J wanted me to have an abortion the moment I told him which is understandable. Eventually, he calmed down and said he would help and do his bit... I suggested adoption but J went ballistic saying theres no way ur giving my son away to strangers! J said he didnt want anyone of his friends and family to knw of this babys existence, the moment I suggested adoption, he said he'd tell his family but I dont believe him. Im 22yrs, an undergraduate student, cant get a job, almost 7mnths very lonely and miserable, that my uni work is beginning to suffer. I have told my siblings, but my parents still arent aware their only daughter is about to be a single mum. I dont knw how to tell them, I cant bear to see the disappointment. I love my unborn son but I wish I had made J wear a condom. I am so sad and disappointed and so is J, what would become of my child?! Anyone else ever found themselves in this situation?? How do get thru this?? Its depressing!