Seriously, breaking a condom is major bad luck. So how can you avoid 18 years of bad luck? Or a lifetime with an STI (sexually transmitted infection)? Well, if a condom breaks -- there's the morning after pill (Plan B) but if you are worried about an STI, then currently the best thing that you can do is go take a shower and wash off with soap. Unfortunately, there's not much out there that can help - it would be awesome if there was some product that was a soap for killing off the nasty STD bugs, but that sadly hasn't been invented yet. So yeah, 7 years of bad luck doesn't sound so bad.