![]() ![]() Yolk sac makes the blood that nourishes the embryo until placenta forms and takes over the function. The amnion with its amniotic fluid envelops and protects the growing embryo. Amnion and the yolk sac are two other structures that develop this week. It is made of 2 cell layers called epiblast and hypoblast which form future organs and tissues of the baby. Your baby which is a ball of cells just about the size of an apple seed is now called an embryo. Your baby starts producing a hormone called human chorionic gonadotropin (HCG), which prevents your menstrual periods and turns your pregnancy test positive. Once implanted, the developing embryo can access your blood supply and receive nutrition. ![]() This is called implantation process and takes about six days to be completed. This ball of cells becomes fluid-filled (blastocyst) and towards the end of this week, blastocyst gets embedded into the lining of your womb. Once in the womb, this group of cells appears like a small ball (morula). You would have conceived and a new life starts growing within you! Week 3ĭuring these seven days after conception, the fertilised egg undergoes a series of cell division beginning from breakdown into two cells, then four followed by eight cells and then goes on dividing as it travels from the fallopian tube into your uterus (womb). You would have released an ovum (egg) around this time and if viable sperms remain in the fallopian tube, fertilisation of the egg by the sperm may take place close to end of this week. Eat a healthy diet rich in vitamins, particularly folic acid. Avoid alcohol, drugs, tobacco or any other substances that are harmful to your baby. While you plan to conceive, prepare yourself well. This mucous also protects and keeps the sperms alive for about 3-5 days. Your oestrogen hormone levels increase and a special kind of mucous like substance lines your uterus and the fallopian tubes to facilitate transit of sperms into the tubes. That means, your expected delivery date is calculated as 40 weeks from the first day of last menstrual period and this week is considered as part of your pregnancy period. This week, you would have your last menstrual periods before you conceive. ![]()
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