People are often advised to freeze embryos and delay implantation so the uterus can recover from drugs taken during egg removal, but there may be few benefits
Source:
https://www.newscientist.com/article/2207380-freezing-embryos-doesnt-boost-ivf-success-rate-despite-common-use/?utm_campaign=RSS%7CNSNS&utm_source=NSNS&utm_medium=RSS&utm_content=home