8 weeks
A fetus is a fetus until it is born at which time the umbilical is cut and it becomes a child. An other argument is that the foetus ceases to be a fetus at the time it is a viable human being and can live without the mothers support.
For the first 8 weeks the developing human is called an embryo after that it is called a fetus.
i think you have to leave them with the mothers for a couple of weeks to a month. they have to stay with the mom for awhile,
the fetus will start kicking around 25 weeks
2 weeks
normally a fetus is 5.6 cm on average
Maternal treatment with spiramycin for toxoplasmosis infection occurring within the first two weeks of pregnancy prevents transmission to the fetus. The prognosis for congenital toxoplasmosis depends on its severity.
Fetus
10 weeks
fetus
29 weeks