This is referred to as blastocyst development.īy growing the embryos to blastocyst stage you have the potential to choose the best developing embryos and also to transfer fewer embryos, which results in increased pregnancy rates and lowers the multiple pregnancy rates. Recent breakthroughs in the laboratory and developments in media culture have made it possible to grow embryos in vitro for up to 5 days. With present day IVF, embryos are routinely transferred back 3 days after fertilisation. In natural conception embryos arrive in the uterus 5-6 days after fertilisation. At Barbados Fertility Center our patients come to us from all over the world to avail of our high IVF success rates which considerably higher than the national average rates for both the UK & US. Once these embryos are created they are transferred to the woman’s uterus after 3 to 5 days and it is here that nature takes over for the embryo/s to implant and progress to a successful pregnancy. IVF is an option for many couples who struggle to conceive naturally. IVF when translated means fertilisation “in glass” and refers to the process where a woman’s eggs are fertilised with male sperm outside of her body in a laboratory to produce embryos. In Vitro Fertilisation (IVF) is one of the most common procedures performed at Barbados Fertility Center.