Your Baby is the Size of a Seed

Placenta and embryo begin forming

While you may have just started to wonder whether you're pregnant, your soon-to-be baby has already found its home: The blastocyst has completed its journey from your fallopian tube to your uterus.

Once there, it burrows into your uterine lining and implants — making that unbreakable connection to you that'll last the next eight months (and a lifetime after that).

As soon as that little ball of cells is settled in your uterus, it will undergo the great divide, splitting into two groups. Half of what's now called the embryo will become your son or daughter, while the other half forms the placenta, your baby's lifeline — which channels nutrients and carries waste away until delivery.

Development of the embryo and amniotic sac

While the amniotic sac (also called the bag of waters) forms around it, so does the yolk sac, which will later be incorporated into your baby's developing digestive tract.

The embryo now has three distinct layers of cells that will grow into specialized parts of your baby's body. The inner layer, known as the endoderm, will develop into your baby's digestive system, liver, and lungs. The middle layer, called the mesoderm, will soon be your baby's heart, sex organs, bones, kidneys, and muscles. And the outer layer, or ectoderm, will eventually form your baby's nervous system, hair, eyes, and outer layer of skin.

The Mutlu Anne app is with you every step of the way on your pregnancy journey.

Thanks for reading.