Women with TS have trouble conceiving naturally because they are susceptible to early ovarian insufficiency. This means that the ovaries of women with TS lack the capacity to produce both the hormone estrogen and the eggs required for fertility. Lack of estrogen results in lack of healthy development of female sex characteristics during puberty. Lack of egg production leads to infertility.
Though most women with Turner syndrome are infertile, some females may become pregnant with or without reproductive technology(E.g. IVF). People with TS may have many medical problems that need optimising before planning pregnancy. If you are a person with TS, please seek care from an endocrinologist before planning a fertility procedure.