Jessica777, as eire said, ignore sunshine, how many times has she been on the streets, in one of her posts she said something like she could put herself in anyone's shoes(yea, right), that is why I ignore her most of the time. This forum is for support and you did what was right at the time. No one wakes up and says I would love to get pregnant and have an abortion, things happen.
Eire is correct, you could be pregnant or your body is still repairing itself from the abortion, try to get in and see the Dr. When you can and in the meantime, try to get hold of a hpt.
I am truly sorry that you have noone and you had to live in the streets, I do hope you meet someone that treats you right and you meet some good friends along the way so that you will not have to go back and you can keep going forward.
Good luck to you!
Keep us posted.