16 worst birth control mistakes
When it comes to birth control, many people want to just set it and forget it. It's there, it does its job, who wants to think about it, right?
But bungling birth control is all too common. In fact, half of all pregnancies in the United States are unintended. Yikes.
To make sure you can count on your contraceptive, here are the potential pitfalls from our friends at Health.com...
16 worst birth control mistakes
You're not using it
But the bottom line is if you're sexually active, and now isn't a great time to start a family, you should select a type of birth control that works for you. Luckily, there are a ton of birth control options out there.
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16 worst birth control mistakes
You're taking rifampin
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Some anticonvulsants, oral medications for yeast infections, HIV drugs, and the herbal supplement St. John's wort can also be a problem for these types of birth control, as well as for contraceptive implants (Implanon), according to Planned Parenthood.
Bottom line? Check with your doctor about possible interactions and medications that can make your birth control less effective.
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16 worst birth control mistakes
You use the wrong lubricant
Choose a water- or silicone-based lubricant, available in the family-planning aisle in drugstores and supermarkets. Also keep in mind that many lipsticks contain oils that can weaken latex.
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16 worst birth control mistakes
Your nails nick your sponge
Long fingernails can nick or tear contraceptive sponges during insertion, which reduces the efficacy.
Even small nicks or tears can get bigger during intercourse, so keep your nails short or be sure to use care. It's also important not to nick or tear condoms with jewelry, fingernails, or teeth.
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16 worst birth control mistakes
You're inconsistent
Missing three or more combination birth control pills (the most commonly used type, which contain both estrogen and progestin) means all bets are off until you've taken the pills again for seven days straight - so you need to use backup birth control during that week.
If you miss even one or two of the first pills of a pack, it also means you need seven days of backup birth control (such as condoms).
Progestin-only pills need to be taken at the same time each day, with backup contraception needed for 48 hours if you get off-schedule by more than three hours.
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16 worst birth control mistakes
You haven't explored the options
You could also consider birth control injections (Depo Provera), a shot in the arm that lasts 3 months, as well as sponges, rings, patches, diaphragms, and more. Check out the variety of choices at Planned Parenthood.
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16 worst birth control mistakes
You're on the wrong pill
People call it "the pill," but there are a bunch of different types, with some more effective than others. If you're breast-feeding or have heart disease, migraines, or other reasons you can't take estrogen, it may make sense to be on a progestin-only pill (or "mini-pill"), but a combination pill provides more pregnancy protection.
"Choosing between birth control pills is more of an art than a science," says Dr. Edelman. Talk to your doctor about balancing the highest level of efficacy with your other needs and concerns.
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16 worst birth control mistakes
You pick the wrong condoms
Latex, polyurethane, and lambskin condoms all protect against pregnancy, but lambskin condoms may not protect against HIV. So unless a latex allergy is an issue, lambskin condoms may not be your best option.
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16 worst birth control mistakes
You skip backup
For progestin-only pills, you need backup for the first 48 hours of use. Whatever type you choose, check with your doctor to find out if you need backup until it starts working.
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16 worst birth control mistakes
You remove your sponge early
Diaphragms need to stay in place for six to eight hours after sex, but have to be removed at least every 24 hours for cleaning.
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16 worst birth control mistakes
You don't have an emergency plan
People 17 and older don't need a prescription to buy emergency contraception products, called Plan B One-Step and Next Choice, at drugstores.
But the pills must be taken within 72 hours (up to 3 days) of unprotected sex, according to the manufacturers, and the sooner the better. (Experts, including Planned Parenthood, say emergency contraception will work if taken within 120 hours, or up to 5 days, but again - sooner is better.) It's a good idea to have them on hand, just in case.
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16 worst birth control mistakes
You rely on spermicide alone
Studies show that spermicide can make other methods of contraception, including condoms and the pill, even more effective. But on its own, spermicide offers very low protection from pregnancy.
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16 worst birth control mistakes
You use condoms incorrectly
Use one before any genital contact, not just before intercourse or climax as even a few drops of pre-ejaculatory fluid can cause pregnancy.
To prevent breakage, squeeze the tip of the condom to get the air out before putting it on. Check which way the condom unrolls before touching it to the penis, and if you make a mistake, throw it away in case there's already semen on the tip.
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16 worst birth control mistakes
You don't use lubricants
A non-oil based lubricant can help keep condoms from tearing or breaking.
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16 worst birth control mistakes
You smoke
It's common knowledge that smoking while taking birth control pills ups the risk of blood clots, heart disease, and stroke - though the risk may be higher with some types of pills than others.
Can't quit, no matter how hard you try? Don't give up, since serial quitters are more likely to successfully kick the habit.
In the meantime, talk to your doctor to find the safest birth control for you.
More from Health.com: 12 types of birth control
16 worst birth control mistakes
You don't use condoms
Diaphragms and cervical caps may provide a small amount of STD protection, but are much less effective than condoms.
More from Health.com: 12 types of birth control