The question is how many embryos should be transferred to achieve the optimal pregnancy chances? Logic dictates the insertion of as many embryos as are available! But does this really improve the pregnancy and what are the implications? The answer is that with the increase in the number of embryos that are inserted, the pregnancy after a certain point plateaus. In addition, there are higher chances of multiple pregnancies too. We have all heard of twins but triplets, quadruplets, and higher order pregnancies are also not uncommon!
The easy solution is to put in less number of embryos! Of course this has to be done cleverly so as to not let the success rate take a hit. This decision is best taken in consultation with the fertility specialist and embryologist, taking into account, the age and medical history of the woman, the number and quality of embryos and the budget of the couple. Where the couple are adamant in avoiding even twins, they can opt for the transfer of a single embryo at blastocyst stage. Any surplus embryos can be frozen for later transfer.