How safe is the Sterilisation (Female / tubal occlusion):
As the procedure is an operation requiring anaesthetic, your surgeon should discuss the associated risks of surgery with you before the procedure is carried out. If female sterilisation fails, and you do become pregnant, there is a small increased risk of ectopic pregnancy. You should seek advice straight away if you think you might be pregnant or have a light or delayed period, unusual vaginal bleeding, or if you have sudden or unusual pain in your lower abdomen.
It's important to remember that sterilisation does not protect you from STIs.