How much protection do condoms give against pregnancy? If a condom breaks what are the risks of pregnancy?
When used as directed (i.e. the condom doesn't split or burst), they can be very effective in preventing both pregnancy and sexually transmitted infections (STIs). If a condom breaks and no other form of contraception such as the contraceptive pill is used, then there is a risk that a woman may become pregnant, so you should consider using emergency contraception. There is also a risk of contracting a STI.