welcome to healthcare magic. the yellow fever vaccine
is a live viral vaccine, as such all live vaccines are not given during pregnancy
. the present evidence for yellow fever vaccine is not much. the women who have received the vaccine during early pregnancy have not found to have any increased risk of congenital malformations. however there has been documented a small risk of minor skin malformations. so as per present evidence a woman who takes the vaccine should not get pregnant for 4 weeks. now you can decide, if u would like to continue with the pregnancy and take the risk . there are many chances that nothing will happen to the baby.