Week 4   

You may have missed menstruation or are waiting to pass that monumental day. If you are pregnant you may start to notice some of the following pregnancy symptoms. Early symptoms include: fatigue, breast soreness, bloating and mood swings. Some women feel nausea from very early on but generally speaking it tends to remain at bay for a few weeks (week 6 or 7 are reportedly the worst for nausea development). A developing embryo has 3 layers, each of which have specific goals to form your baby in its entirety. During this phase, you are considered to be in your first trimester. This is the most critical and important part of a baby's development. During the first trimester all of the baby's functioning organs are formed and by the 12 week looks very human like.