I think you still have time to think about what is best for you AND any potential child.
Your description of your sexual and reproductive history indicate that you are an EXTREMELY irresponsible person. (Taking PlanB over and over again and having 2 unplanned pregnancies in less than 9 months does not suggest a woman who gives much thought to ANYTHING she does.)
If you are this irresponsible now, do you REALLY think this will change over the course of your pregnancy? (If you can't use a condom, do you think you'll be able to eat properly and see your doctor or midwife for regular check-ups?) How will it change after baby arrives? If you can't remember to take a pill, how will you care for a helpless infant who needs to nurse every couple of hours around the clock, needs regular diaper changes and frequent doctor's appointments and lots of love and caring and attention.
Having a baby should not depend on poor decision making and a dream. It it a lifetime commitment to putting the needs of another person ahead of your own. Are you up to that?
(And from a practical POV -- do you have the financial ability to raise a child? Does your boyfriend have a job? Do you? Health insurance? Your own place? Enough money in the bank to cover your medical costs and the time off you will need after baby arrives -- and to pay for daycare if you go back to work? If he walks away (and a month ago you described him as 'a guy I've been seeing ....') will you be able to cope emotionally, and financially with only child support payments?
EDIT: Yes, Jason, her hardships will end when her child is taken away and put into foster care because she neglects or abuses it, or or is a drug user.