The NHS has to choose which couples they can fund for IVF. If they cannot be treated on the NHS, some people chose to pay privately for treatment. This is very expensive, and costs approximately £5000.
The chances of a successful pregnancy vary depending on the age of the woman involved. As a woman's age increases, the chance of conception decreases. In particular, the chances of a woman over the age of 43 becoming pregnant decreases to a 5% success rate.
Data from the NHS choices website shows that:
In 2010, the percentage of IVF treatments that resulted in a live birth was:
Some people worry about the ethical implications of IVF. They are concerned that couples may want 'designer babies' with 'desirable' qualities, so may only want certain fertilised eggs. For example, they may want a girl if they have lots of boys in the family.
Also, the embryos that are not used may be destroyed. Some people consider embryos to be new lives and view their destruction as unethical.