Pregnancy Week 4
The first month of your pregnancy is at its end and you are probably still not even aware that you are pregnant. Human Chorionic Gonadotropin HCG, commonly known as the pregnancy hormone, is now present, once you have missed your period and taken a pregnancy test, the second line is sure to appear.
Your baby is the size of a poppy seed, and about to move from the germinal to the embryonic stage of development. The embryo has two layers; epiblast and hypoblast, these will develop the internal organs during the coming weeks. The amniotic sac and the yolk sac enclose the embryo to provide it cushioning as blood vessels are developing. The placenta is still growing into the uterus lining to increase blood flow and oxygen supply for the development of the fetus in the weeks to come.
Mom, the most common symptoms at this stage for pregnant women are mild cramps, bloated belly, morning sickness, fatigue, sore breasts, and mood swings. While your belly is going to start growing, you will not be able to tell for some time to come.