The most important thing is to not panic. If you’re worried you or your partner could be pregnant, see your GP, local sexual health clinic, or pharmacy to ask about getting emergency contraception.
If your partner(s) has not recently been tested for STIs, it is advisable to get tested if the condom has broken during sex. It is important to get tested for STIs so you can be treated and avoid any further problems caused by infection.
You can order an at-home STI testing kit delivered discreetly, direct to your door
For more information about condoms read the test.me guide to condoms.