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Script: Imibiko embalwa ibonisa ukuthi ukuvezwa kumdumo ophezulu kungathikameza kabi ipilo ye-fetus. Imiphumela yamsinyana ukubetha kwehliziyo msinyana okuqhubekela phambili, ukugwinya kwe-fetus okungaphezulu, nokuziphatha okushintshako. Okungenzeka esikhathini esizako kufaka hlangana ukulahlekelwa kukuzwa. | ||
All ages referenced to fertilization, not last menstrual period. One month = 4 weeks. |