3 Weeks Pregnant
Between four and seven days after fertilization has
occurred, your fertilized egg will have reached the uterus and will
now have divided into hundreds of tiny cells.
Implantation usually occurs in the upper part of your
uterus. The blastocyst secretes hormones, which helps it to implant
itself in the endometrium (lining of your uterus). These hormones
also stop your body from releasing the endometrium, resulting in
your first missed period. Implantation is a critical part of the
development process as in these very early stages the endometrium
provides your embryo with nutrients, and removes waste.
Once implanted, the outer layer of your blastocyst will connect
with your small blood vessels to form the placenta. The inner cells
will continue to develop and form an embryo.
Do you want your track and share your week by week updates on Facebook. Check out OHbaby!'s facebook application by going to