1 Week delayed

I don’t think there is anything you can buy to prevent pregnancy at this stage. Plan B pill or Morning After pill works only up to 5 days since the intercourse (120 hours) . So if its been more than that there is nothing you could really do but have an abortion. Have you tested yourself for pregnancy ? How can you be sure that you are pregnant? Maybe you should buy a home pregnancy test to be sure. Make sure you take it first thing in the morning when you wake up and that it has been at least 10 days since your last intercourse. Hope this helps