I Have Had Unprotected Sex In The Month Of July.after

I have had unprotected sex in the month of july.after then my periods started asusual & continued only for a day & its september running i still dint have my regular periods..when checked with a kit i saw positive pregnency result. Now iam not ready for all this as iam still not married. So i have started taken raw papayas & my question is that can i take unwanted 72 now in the third month?