Second month
Second month
The first period of prenatal development is the germinal stage, which lasts for the first two weeks after conception. During this stage, the fertilized egg, or zygote, undergoes rapid cell division and eventually forms a blastocyst. The blastocyst implants itself into the uterine wall, marking the end of the germinal stage.
Pregnancy
The fetal period.
fetal
During the 4th month, the first month of the second trimester, the greatest amount of fetal growth occurs.
Pigs have a gestation period of 114 days.
Fetal lungs are not functioning; no organism can start to breathe while immersed in amniotic fluid. Lungs only begin to function at birth.
About weeks 30-35
Pigs have a gestation period of 114 days.
The three parts of the hip bone ossify during the fetal period