Online Reproduction Lab

The first significant thing is when the heart and circulatory system starts to form and the heart beats for the first time. This happens in week 5. I think this is important because it is a big step towards your baby being able to develop other areas. Your baby isn't really alive if it doesn't have a heart beat.

The next one is in week 6 when the nose, mouth, and ears start to develop. This is good because your baby can hear you when you talk and this is a good way for the baby to start listening to you voice. When I was pg I read to him all the time. The eyes are also starting to form. Picture below

Next I would say week 9 because this is when the organs, muscles, and nerves start to work. Also all of the basic body parts are here. You can see the eyes, the nose, the ears, arms, legs, and mouth. I think this is when it really starts to look more like a person and not a bean. Picture below.

Week 10 is next because this is when it starts to make red blood cells. The kindeys, intestine, liver, and brain are now starting to function. This is very important for the body to further develop and function properly.

Next is week 11 because this is when some of the bones start to harden. Which is important because it protects the baby once it is born.

Week 14 is next because the baby starts to make faces which means that the brain is working. The liver makes bile and that means that it is working properly and the spleen is starting to help make red blood cells. Picture below.

Week 15 is a big milestone for some parents because they get to find out if they are having a boy or a girl. This was a big deal for me because everything finally seemed real, we were having a boy and not just a fetus.

Week 19 because the senses are starting to form. The brain is designating areas the smell, taste, hearing, vision, and touch. This is important for when they are born and the first time that you hold them.

Week 20 is important because the protective substance that covers the skin and helps during delivery is now visible it is called vernix caseosa. This is good because it helps the baby slide down the birth canal easier, which helps the mom.

Lastly is week 36. I think this is important because you are considered full term and anyone who has been pregnant knows that this is the time you start counting. The baby's head starts to get in position. Picture below.

It is actually very hard to pick the ten most important weeks of a pregnancy. I know that when my son started kicking and I could feel that was a big deal for me, but no one could really say when that was going to happen. I think that every month has a something important happening.