Zee,
your emotions are extremely strong right now as your hormones are fluctuating and your body is trying to readjust.
Don't make any decisions right now. You need to settle a bit. You've gone from expecting to not expecting, and you should NOT attempt to get pregnant again until you have the answers to lots of questions.
Will you be able to raise the child?
Who will be the father?
Who will provide the income to feed, clothe, support, house the two of you.
Why did you get pregnant the first time?
How does your bf feel about you and the pregnancy now?
How do you feel toward him? Is he still in your life?
I would recommend that you seek out some professional counseling, whether at a women's center, or through your doctor, or church... but you are not over this matter and it will stay with you for a long, long time. Wait before making any decisions.