And what if I want to delay having a child?

The answer depends upon the maternal age and hormonal profile. If you are under the age of 33 and have a good ovarian reserve, you would be a good candidate to freeze your eggs. If you are married and have a middling ovarian reserve, it would be a good idea to freeze your embryos. Typically, frozen embryos lead to higher live births than frozen eggs that are thawed to make embryos at a later stage.