Pregnancy Calendar - Week 3
This week is very important. Your baby (technically called a ‘zygote') will implant itself into the lining of your uterus. From there the little ball of cells splits into two: one will become the embryo (your baby) and the other will become the placenta (the life-cord that gives your baby every nutrient it will need for the next 37 weeks).
Your ovaries start producing progesterone, the hormone needed to maintain pregnancy. As your baby implants itself into your uterine wall you may notice some spotting, this happens often and is nothing to worry about. You also may experience moodiness, tiredness, sensitive breasts, increased need to urinate and nausea - all early symptoms of pregnancy.Pregnancy Calendar - Week 3