Ovodonation. After the age of 45, pregnancies with own oocytes are anecdotal. Even in natural populations that do not use contraceptive methods and have very large families, women stop having offspring after the age of 44. In assisted reproduction treatments few oocytes are obtained and of low quality resulting in embryos with little or no implantation potential.
Therefore, if a patient wishes to become a mother at the age of 50, she should opt for a treatment with donated oocytes or embryos.