WOMEN may need more than two cycles of fertility treatment to get pregnant and older women may need to use donor eggs to achieve success, a study found.
Women younger than 31 gave birth to a child 63pc to 75pc of the time with a third cycle of in vitro fertilisation, while women aged 40 to 42 had a 19pc to 28pc success rate and those 43 and older had a 7pc to 11pc success rate, according to a study in the New England Journal of Medicine.
When using donor eggs, the likelihood of delivering a child was 60pc to 80pc for all ages, the research showed.
Women tend to get discouraged when they don't get pregnant after the first treatment.
Lead author Barbara Luke said that the more fertility treatments a woman undergoes, the better her chance of getting pregnant.