It’s harder than you think.
8Yes, there is a wrong way to put on a condom. Don’t do that.
Planned Parenthood / Via youtube.com
If you accidentally put the condom on upside-down (where the rim is facing down instead of up), it probably won’t unroll all the way. Just take it off and start fresh with a new condom, since that one could have some pre-ejaculate on it, says Herbenick.