Blastocyst culture does not increase the risk of multiples (twins, triplets) compared to traditional Day 2 or Day 3 embryo transfer. Blastocyst transfer reduces the chance of multiple pregnancies by allowing embryologists to select one healthiest embryos for transfer. By transferring high-quality embryo, the chances of a single, successful pregnancy is maximised while minimising the risks associated with multiple pregnancies. Blastocyst culture, in combination with PGT, provides individuals and couples with a safer and more controlled approach to achieving their dream of parenthood.