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Having sex without protection is risky. You're risking pregnancy, getting a sexually transmitted infection (STI), including HIV, and possibly stress.
Unprotected sex is any sex without contraception or a condom. You may have forgotten to use contraception, or it may not have worked. Sometimes a condom might split or slip off during sex.
This still counts as unprotected sex, and you're at risk of STIs and pregnancy. Always hold on to the base of the condom when the penis is pulled out. This will stop the condom slipping off and leaking sperm.
Women who have sex with women also need to know about safer sex because they can also pass infections on to each other.
There are lots of STIs, and you only have to have sex with someone once, or have oral sex once, to catch one or more STIs. You can't tell by looking at someone whether they have an STI.
The best way to avoid getting an STI is to use a condom every time you have sex. Always buy condoms that have the CE mark or BSI kite mark on the packet, because this means they've been tested to high safety standards.
Go for a check-up if you've had unprotected sex and you have any unusual symptoms around your genitals (vagina or penis), such as:
Some people don't notice any symptoms when they have an STI. If you think you might be at risk, it's important that you get tested, even if you don't have any symptoms.
Go to your nearest sexual health or genitourinary medicine (GUM) clinic, or see your doctor.
If a man and woman have unprotected sex, the woman can get pregnant. It doesn't matter what position she has sex in, what time of the month it is or whether it's her first time.
There's always a risk of unwanted pregnancy, but using contraception and a condom can help to protect against it.
Usually, the first sign of pregnancy is a missed period. The only way to find out for sure is to do a pregnancy test. You can buy a test at a pharmacy, supermarket, some doctors or a pharmacy.
You can find more information about taking a pregnancy test and what happens if it's positive in Am I pregnant?
If you're pregnant, talk to a doctor or nurse as soon as possible, so you can discuss your choices and any difficult questions you may have. They can help you make the decision that's right for you.
Emergency contraception can help to prevent pregnancy after you've had unprotected sex.
Emergency contraception is more effective the sooner it is taken. There are two types of emergency contraception:
There are two kinds of emergency contraceptive pill. Levonelle has to be taken within 72 hours (three days) of sex, and ellaOne has to be taken within 120 hours (five days) of sex.
The IUD can be inserted into your uterus up to five days after unprotected sex.
You can get the emergency contraceptive pill and the IUD rom:
You can also get the emergency contraceptive pill from:
If you're not using a regular method of contraception, find one that suits you (and where to get it) so that you can start using it as soon as possible. Read more about getting contraception .
You can get help and advice on contraception from:
Important: Our website provides useful information but is not a substitute for medical advice. You should always seek the advice of your doctor when making decisions about your health.