I had an abortion a few days ago but i couldn't afford the antibiotics. i spoke to the clinic about it and the doctor said "i don't know what to tell you". still can't afford them. but is there any point in buying them after a week or more?

Maybe not needed: You're on the right track in asking whether you still need the antibiotic. Probably it was prescribed to prevent infection, not cure one. Most women don't get infected; it's just a precaution. Having gone a week with no problem, it's probably OK. But ask the doctor or clinic directly. If still needed, ask for an inexpensive one: an older, cheap drug might work as well as an expensive one.