i've had two injections so far, though, after doing research i wish i hadn't because apparently it hasn't been thoroughly tested and can cause some major symptoms (almost similar to pregnancy, or so it feels like) i have been having sex with my boyfriend. i had sex after the first shot. my gyno had me fill out a sheet at my first injection that asked if it were possible that i was pregnant. i asked her about that, since i had been having sex and she said don't worry about it, if i wasn't pregnant at that time then it didn't matter. she didn't tell me to stop having sex, though at the time i was on Yaz! birth control. but as far as i know having sex is totally unrelated to the gardasil injection, and YET AGAIN as a side note for future possible injectees, PLEASE do your research!!! alot of these vaccines are for the pharmaceutical companies to make money.