A human embryo at five to six weeks of development. (Reproduced by permission ofPhoto Researchers, Inc.)
More info: http://www.scienceclarified.com/El-Ex/Embryo-and-Embryonic-Development.html
human chorionic gonadotropin (HCG)
The sense of touch at approximately 8 weeks gestation.
Gestation period for black rat snakes is around five weeks. Incubation takes about 65 to 70 days to hatch.
Usually around five weeks gestation they begin to show if they are pregnant.
The gestation period is five months.
This early you will not have much chance to see it since it's mostly mucus and blood coming out. See related link for picture of embryo.
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Nope! You could just be bloated, constipated or are just "wishing" or "waiting" for it, if you will. At five weeks there is just an embryo, only about 2 millimeters long! Here is what your baby looks like at five weeks... * http://3dpregnancy.parentsconnect.com/calendar/5-weeks-pregnant.html
The gestation period is five months.
You shouldn't be big at all. At five weeks pregnant you have just developed an embryo. An ultrasound typically will not even be able to detect a heartbeat yet.
At five weeks the baby to be is still an embryo, it will not become a fetus until the end of the first trimester. At five weeks the embryo is still masses of cells that are forming body parts. There are groups that will become the heart and circulatory system, the heart is beating and blood cells are beginning to flow. The nervous system (brain and spinal cord) are forming and CSF will soon be flowing. There are buds forming that will become arms, legs, hands and feet. While the embryo bares little resemblance to the baby it will be, the growth over the last five weeks is amazing.
I am not sure how early you mean right away, but about five weeks is the earliest they can tell through an ultrasound. But at only five weeks a heartbeat will not be detected yet, just an embryo and the thickening of the uterine lining.