Changes

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|'''1st month'''|| Attains the consistency resembling shleshma(mucoid character),or jelly mass(kalala) in which all the body parts though present are not conspicuous.  

|'''1st month'''|| Attains the consistency resembling shleshma(mucoid character),or jelly mass(kalala) in which all the body parts though present are not conspicuous.  

1st day-jelly mass(kalala),10th day-buble like(budbuda),15th day-solid (ghana),20th day-muscle like (mamsa panda),25th day-more conspicuous || '''Week 1'''- fertilized oocyte, zygote, pronuclei, morula cell division with reduction in cytoplasmic volume, blastocyst formation of inner and outer cell mass, loss of zona pellucida, free blastocyst, attachment of blastocyst

1st day-jelly mass(kalala),10th day-buble like(budbuda),15th day-solid (ghana),20th day-muscle like (mamsa panda),25th day-more conspicuous ||  

'''Week 1'''- fertilized oocyte, zygote, pronuclei, morula cell division with reduction in cytoplasmic volume, blastocyst formation of inner and outer cell mass, loss of zona pellucida, free blastocyst, attachment of blastocyst

'''Week 2'''- implantation, extraembryonic mesoderm, primitive streak, gastrulation

'''Week 2'''- implantation, extraembryonic mesoderm, primitive streak, gastrulation