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Nourish move love pregnancy calendar5/1/2023 The evolving neural tube will eventually become the central nervous system (brain and spinal cord). The rapidly dividing cells are in the process of forming the various body systems, including the digestive system. The developing baby is tinier than a grain of rice. Seven days after conception, the zygote burrows itself into the plump uterine lining (endometrium). After two more days, the zygote has migrated from the fallopian tube to the uterus (womb). Three days later, the cell (zygote) has divided into 16 cells. Thirty hours after conception, the cell splits into two. Week 2įertilisation of your egg by the sperm will take place near the end of this week. Because your expected birth date (EDD or EDB) is calculated from the first day of your last period, this week counts as part of your 40-week pregnancy, even though your baby hasn’t been conceived yet. This first week is actually your menstrual period. The gender and inherited characteristics are decided in that instant. The moment of conception is when the woman’s ovum (egg) is fertilised by the man’s sperm. First trimester – conception to 12 weeks.Pregnancy is divided into three trimesters: This is because pregnancy is counted from the first day of the woman’s last period, not the date of conception, which generally occurs 2 weeks later. The unborn baby spends around 38 weeks in the womb, but the average length of pregnancy (gestation) is counted as 40 weeks.
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