DNA from the fathers's sperm combines with DNA from the mother's ova in fallopian tube.
5 Week
The embroy is seen in mother's uterus
Suggestion
Sonography to rule out ectopic pregnancy and localization of gestational sac.
6-7 Week
The embryo's heart is beating, though it has only one chamber.
Suggestion
Sonography to see the viability of sac.
8-9 Week
The placenta is forming. Limb buds, the beginning of arms and legs, are forming.
11-14 Week
The embryo has hands with ridges that will grow into finger, and two-segmented arms. The embryo has feet, thighs and calves. Brain, spine, face, heart and stomach are forming.
Suggestion
To do Mini Malformation scan which includes NT Scan, All the common abnormalities between 11-14 weeks can be ruled out like absence of head, down syndrome babies etc.
Pathology
Dual marker test which helps to investigate mentally retarded babies.
16-20 Week
Mother may first feel her baby kicking Baby has completed anatomical formation.
Suggestion
USG Anomaly Scan to rule out more than 90% of fetal abnormalities.
20-24 Week
Suggestion :
Sonography to rule out cardiac abnormality
28-32 Week
Suggestion :
Sonography to see the placental localization, amount of liquor and Colour Doppler baseline study for blood circulation in the fetus.
36-40 Week
Suggestion
Sonography to see Fetal weight, position, cord around neck of fetus. Blood circulation in the body of fetus, amount of liquor.