Your comment specifically says, "Menstruating is the base requirement for pregnancy." It is not. In fact, if you are "menstruating" your body discards the monthly buildup of the lining of your uterus (womb), and hence, you are not pregnant. You and your uterus need to think some more, with facts.
Definitions
Definitions from Oxford Languages · Learn more
men·stru·ate
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verb
gerund or present participle: menstruating
(of a woman) discharge blood and other material from the lining of the uterus as part of the menstrual