You could possibly go to a crisis pregnancy center (one that does not provide abortions, ask around first, of course, and find one you mesh well with- they give good information on abortion that the abortion clinics will not) and get a usually free test done, also.
I would call around or do some searches on emergency contraception, if you dont want to get pregnant. There's not a huge chance that this will still work for you, in birth control form, but there are other options if you are pregnant, like motherhood or adoption.
I will venture to say (even though I would hope you kept the baby if you are pregnant, please) that there are other natural ways to terminate a pregnancy, also- but I hope you choose motherhood, if you end up pregnant.
If you do choose to have an abortion, or whatever, I really hope you do some simple searches related to abortion and find out what an aborted fetus really looks like. Also, some of those clinics are just downright awful and they will sometimes lie and tell you youre pregnant even if youre not, just to make a sale. Its nuts, really.. Alot of bad stuff going on there.. So please make an informed decision, whatever happens, and good luck to you. God bless.. And loves.. You and your unborn.