Some medicines can prevent the pill working properly.

Use them along with your chosen method of contraception. If someone has forced or persuaded you into a sexual situation you are uncomfortable with, there is help available.

You can call the national sexual health helpline free on 03.

If you take it correctly, at the right time on the right day, the contraceptive pill is 99% effective.

However, certain things, such as being sick, can stop it working properly.

Your call will be treated with sensitivity and in strict confidence.

You can also contact a sexual assault referral centre (SARC), where you can get specialist support and medical care if you have been sexually assaulted.

If you decide to continue with the pregnancy, start your pregnancy (antenatal) care as soon as possible. If you have sex without a condom or the condom splits or comes off, you're also at risk of getting an STI.

If this happens and you're worried you have caught an STI, you can get confidential help and advice in your local area, as well as free testing for STIs, at: Find sexual health services near you.

But you might want to take time to make your decision.

This is why it's important to know if you're pregnant as soon as possible.

You may not be protected against pregnancy if you've forgotten to take your pill.