11 weeks pregnant and my fiance isn't stable. Please help?

hello. I need advice. I am 27 years old, my career just took off and I am doing very well. I am 11 weeks pregnant and I really need advice. My fiance isnt working, his mother lives with us, and she is a complete horror and if my parents find out I am pregnant, they are going to be devisted, not because I am pregnant, because he wouldnt be able to support me. I started hinting/questioning my dad just now saying that i want a family and he said what all he wants to see if for my fiance to have a stable job and to be able to support me and a family. I have been with my fiance for five years and he has not had a stable job since i have been with him. my father offered to get him a job in his company and he keeps refusing it because he needs to get his credentials before he gets in...his drivers license and ged diploma...yea, i know this sounds absolutely horrible but i know when it comes down to it, he will be a good father. my father said if I am considering having kids to do it the right way and maturely. he doesnt know i am pregnant yet, but i am sure he suspects it now after asking for his feed back "if i were to get pregnant' and 'i want a family' he is all for it but he wants to see my fiance able to take care of me and afamily. im afraid to tell my parents the real story. my dad is afraid that if i do have a baby now, the resoponsiblily will fall on him and my mother. I cant blame him. he is geting ready to retire. sorry for all the typos and if i am not making much sense, i am just really nervous right now. what it comes down to is should i have an abortion? I have a great career in front of me in a law firm, possibly going into a management position in the near future, my fiances work eithics are abolutely horrible and we live with his mother, who is a real witch and i wouldnt want my worst enemy around her. I have a picture of the ultra sound in front of me right now and it really hurts me that i am considering having an abortion because in the ultra sound picture, it actually looks like a person....i am just in a bad situation right now. my parents would be very disappointed for one...please, no nasty comments, i know i am a 27 year old woman but to chance affecting my parents and i relationship would be horrible and devistating to me....we are extremely extremely close and i dont want to hurt them. Also please no nasty abortion comments like god is going to punish me....i dont like judging at all...people go through hard times and have to make hard decisions, why make it harder for them. I am asking for mature advise and for support because i feel very alone right now. I just want the best for everyone that is involved, including the possible future of a child and i want to make an overall right decision for the child and if i go through with the pregnancy, make sure the child can have tge best life I can provide him or her. Thanks.