Thank you for your question.
You need to see a gynaecologist for your abortion whether medical or surgical. You should not purchase abortion pills over the counter as it is illegal to do so. This is not to make things difficult for you but to protect you in case of any complications so that the doctor who gives you the procedure is fully responsible to take care of you if you bleed a lot or if the termination does not complete.
Please be sure to ask for regular reliable contraception to use after the procedure so that you do not have to go through a situation like this again.