You missed your period? Are you pregnant? Are you anxious to know? Usually women do not notice any physical change on their body during the first week of pregnancy.Rarely some might experience mild cramps, tiredness and some women may faint during to the low blood pressure. However these signs vary from one person to another and do not happen systematically to all woman.
The journey of the egg starts when the follicle is mature. The egg is released and travels through the fallopian tube. At this stage the egg gets fertilized. It will take usually 2 to 3 days to reach the uterus wall were implantation occurs.
This week marks the start of the embryonic period. The blastocyst that travelled through the fallopian tube to the uterus will implant into the uterus lining and starts the division process.
Now your embryo is the size of an apple seed. You can differentiate clearly between the head and the tail. At this point your baby’s heart and blood system is already functioning as well as the neural tube that forms your baby’s brain and spinal cord.
During this week, your baby’s nose, mouth, and ears are beginning to take shape. Dark spots in the head side are also starting to form developing your baby's eyes and nostrils. Buds that will later become arms and legs begin to show. His heart, no bigger than a poppy seed, is beating about 100 to 160 beats a minute.
During this week, hands and feet are emerging from arms and legs. Your baby is still considered as embryo. He has doubled the size now reaching 11 to 13mm. He’s the size of a blueberry. You could also see the tip of his nose and the veins beneath his skin.
Your baby is growing at a rate of 1mm per day. He starts looking like a baby more than a reptilian. His heart is beating at 150 times per min and even if you don’t feel it, he now is making movements with his tiny limbs.
Your baby is the size of an olive: about 13 – 17mm in length. Her heart is divided into chambers and the valves start to form. The tail is completely gone. Her teeth start to form.
He is now around 1 inch long, weighing less than seven grams. He has completed the first phase of his development and entered the fetal period where tissues and organs will grow rapidly. He started to swallow the fluid around him and moves like a fish but unfortunately his movements are still too small for you notice..
Your baby is the size of a walnut. Tiny teeth bud are forming, her bones are growing and getting harder. Her hair is forming as well as her nails and ovaries if she is a girl. A tongue and palate in the mouth are shaped. She is very active and moves all the time
You are reaching now the end of the first trimester. During this week your baby’s weight reaches 14g and he is about 5cm long. His fingers will start to open and close, his eyes will clasp and will start sucking movements with his mouth.