The possibility of pregnancy even if the hymen is not ruptured is mainly seen in the following two situations: First, some women have very good hymen elasticity and although they have normal sex after being married, the hymen does not rupture, so in the hospital gynecological examination, many married women have a relatively intact hymen even if they are pregnant, most of them have a ruptured hymen only after giving birth. Secondly, in marginal sex, the male penis does not fully enter the female vagina, but only ejaculates at the external vaginal opening, and the sperm enters the female vagina under the ejaculatory pressure, and after entering the vagina, it may enter the uterine cavity and meet the egg, and it is possible to get pregnant. So even if the hymen is not broken and there is actual sex and ejaculation, there is a possibility of pregnancy.