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DNA
23 chromosomes come from each parent. This DNA combine and split. Before your baby becomes a baby, it is just a bunch of cells called a Blastocyst. -
"Invader"
As the group of cells plants itself into the uterus, white blood cells see the sperm and egg as an invader. These white blood cells come in and try to eliminate the "invader", so the group of cells has to send a signal to say that it is supposed to be there. -
Poppy seed
2 weeks into your pregnancy, the cells are officially an embryo. This embryo is the size of a poppy seed. -
heart beat
around 5 weeks, your babies heart will start to beat. It beats about twice the rate as the mothers. -
Limbs
Around 8 weeks, your baby has formed the beginnings of having arms and legs. -
Fetus
Ten weeks into the pregnancy, you can officially call the embryo a fetus! The baby has arms, legs, and organs, although the heart is one of the only ones working. -
2nd Trimestester
14 weeks into your pregnancy is the start of your second trimester. -
Light
Although the baby's eyes are still shut, your baby will be able to detect light inside the mothers womb. -
Boy or Girl?
After 16-18 weeks, your baby will officially have a gender, and you will be able to tell through the sonogram. -
Sound
The baby is now able to start hearing sounds from outside the womb. Try talking to your baby. He/she will be able to hear you. -
Third trimester
Your baby is almost fully developed. The rest is just growing and maturing of the body's organs.