When you are ready to use your frozen eggs, you can use your partner's sperm or will need to find a sperm donor to use in your treatment. There are lots of options for finding a sperm donor. Once ready, your frozen eggs will be thawed, inseminated with the sperm, and grown into embryos, in the hope of transferring them into a person's uterus (womb) to develop a healthy baby. It may be your uterus, a partners or a surrogate’s uterus. This is what’s called a full IVF cycle.