It depends essentially on a woman's age. This is also true for spontaneous procreation: the probability of a woman becoming pregnant naturally during a cycle is 25% at 25, 12% at 35 and 6% at 40.
On average in France, the delivery rate is 30% by oocyte puncture followed by fresh and/or frozen embryo transfer.
After a fresh embryo transfer
- the delivery rate is 25.4%.
- the multiple birth rate (twins and more) is 5.8%.
After a frozen-thawed embryo transfer,
- the delivery rate is 23.6%.
- the multiple birth rate (twins and more) is 3.7%.
After insemination for a hetero couple: 10.6% of inseminations led to a birth After insemination with donor sperm: 17% led to a birth.