How common is ectopic pregnancy ?
In the United Kingdom, approximately 12,000 ectopic pregnancies are diagnosed each year (BJOG,2011). The reported incidence of ectopic pregnancy after IVF treatment varies between 2-11% of all pregnancies. This is much higher than is reported after natural conception, which is about 1 in 100 to 300 pregnancies. After one ectopic pregnancy, the risk of recurrence is between 10-20%.
In addition there is heterotopic pregnancy (a combined normal pregnancy and ectopic pregnancy). The incidence of heterotopic pregnancy after IVF is about 1% of all pregnancies compared with 2 in 30,000 after natural conception.