What to take after possible HIV/STD exposure?

You have already passed the time frame to take the pill. Sharing needles is the number one cause for hiv. Do you know if your friend is hiv+ ? Because if he isn't, and he's the only one you shared with then you probably don't need to worry. Unfortunately you have to wait 3 months to take a hiv test. Sometimes it takes 6 months for anti bodies to show up in your blood. I hope you have learned from this. Try not to worry. And good luck