Health·Posted on May 14, 201519 Condom Mistakes You Might Be MakingIt's ~harder~ than you think.by Casey GuerenBuzzFeed StaffLinkFacebookPinterestTwitterMail So condoms are a fantastic way to prevent STIs and babies. But you probably already knew that. 1. The condom needs to be worn the WHOLE time. 2. Add lube outside AND inside the condom. Tap to play GIF Tap to play GIF 3. But stay away from oils and lotions with latex condoms. 4. Always check the expiration date. Tap to play GIF Tap to play GIF 5. Wait until the penis is erect before you put the condom on. Tap to play GIF Tap to play GIF 6. Always leave some room at the tip of the condom to prevent spillage. Tap to play GIF Tap to play GIF 7. Yes, there is a wrong way to put on a condom. Don't do that. Tap to play GIF Tap to play GIF 8. The condom should roll down easily and reach the base of the penis. Tap to play GIF Tap to play GIF 9. Don't wait too long after you finish to take the condom off. Tap to play GIF Tap to play GIF 10. There are SO MANY kinds of condoms, so don't settle for the first one you try. Tap to play GIF Tap to play GIF 11. Make sure you're wearing the right size. Tap to play GIF Tap to play GIF 12. You probably don't need spermicide. View this photo on Instagram 13. Putting on a condom should be another part of foreplay, not an awkward inconvenience that kills the mood — and the boner. View this photo on Instagram 14. Yep, you should be using condoms for oral sex, too. Tap to play GIF Tap to play GIF 15. Make sure to use a new condom for every sex act. View this photo on Instagram 16. Most people stop using condoms way too soon. 17. Female condoms are just about as effective as male condoms. 18. Never ever ever double-bag it. Tap to play GIF Tap to play GIF 19. If you're allergic to latex, you definitely still have options. Want expert advice on all things sex every week? Sign up for the BuzzFeed Health & Beauty newsletter!