Technology can be a double-edged sword. With so much information easily accessible to anyone at the touch of a button, it's likely that something you read on the internet isn’t going to be accurate. When it comes to sex, the internet is rampant with all kinds of guides, tips, and myths. Many of them seem silly, however, some might have you wondering if they are actually true. Here, we've debunked some of the strangest sex myths out there.

Using Two Condoms Is A Bad Idea

In this case, more isn’t better. By using two condoms at the same time you actually increase the risk of them breaking. According to the Centers for Disease Control and Prevention (CDC), using a condom correctly can decrease the chances of causing pregnancy or contracting a sexually transmitted disease (STD), such as HIV. "Consistent and correct use of the male latex condom reduces the risk of STD and HIV transmission," the CDC says, however, "the most reliable ways to avoid transmission of STDs are to abstain from sexual activity, or to be in a long-term mutually monogamous relationship with an uninfected partner."

Natural Family Planning Can Actually Work

Natural Family Planning (NFP) is a combination of birth control methods that forgoes using any drugs or devices. It involves keeping track of a woman’s resting body temperature, the timing of her menstrual cycle, and the consistency of her cervical mucus. When done correctly, it can prevent pregnancy, according to the Department of Health and Human Services (HHS). In 2007, researchers found that NFP is as effective as the contraceptive pill. Out of 100 couples who use NFP, one to 25 will become pregnant, though these chances decrease if all methods are used effectively. However, it’s important to note that NFP doesn’t protect against STDs.

You Can Get Pregnant if You’re On Your Period

Although the likelihood is lower, you can get pregnant during any stage of your menstruation cycle. “Sperm can live inside the body for up to a week, so if you have sex during your period and then ovulate shortly after, his little swimmers could still be hanging around, ready to make sexy time with an egg when it arrives,” Dr. Sherman Silber, director of the Infertility Center in St. Louis told Women’s Health Magazine.

Men Can Have Multiple Orgasms

While it is true than men need time to recuperate post-ejaculation, they can achieve multiple peaks of pleasure during sex. Some tantric sex experts believe that this is possible by controlling ejaculation. “The pubococcygeal (PC) muscles, which run from your pubic bone to your tailbone, are the ultimate sex muscle,” according to Discovery Health, “If properly conditioned, the PCs enable you to stop ejaculation while continuing to enjoy sex.” Thus, achieving multiple male orgasms.

Shoe Size Does Not Indicate Penis Size

This misconception has been around for so many years, yet some people might believe this to be true. However, there is no scientific basis to this myth, and one 2002 study found that there was indeed no correlation.