Eradicating your bone marrow stem cells, and replacing with gene edited cells can cure the disease but leaves one sterile. Preemptive egg and tissue freezing and sperm banking saves the day but can cost up to $20,000 US dollars ( less for sperm) and In vitro fertilization (IVF) for women (not for sperm) comes with similar price tags. Concerns are, that one might carry the gene to baby, so outside donor IVF might be more sensible and carries similar price-tags. However, the cure is a miracle. Read more about it here:
New gene therapies confront many sickle cell patients with an impossible choice: a cure or fertility
https://www.statnews.com/2023/12/06/sickle-cell-infertility-crispr-vertex-casgevy-bluebird/?utm_source=pocket-newtab-en-us