Snowflakes,
Not sure if it's too late to reply. Anyway, amniocentesis is optional. The best time for the procedure is abt 15 to 17 wks gestation & it's recommended for :-
1) Women who are 35 yrs o older at the time of delivery, the risk of trisomy is 1 in 180, compared to one in several thousand women in their teens and twenties. For women older than 45, the risk is 1 in 20.
2) If you have a family history of a previous abnormal pregnancy.
3) If ur blood test shows that u r at high risk of chromosomal anomaly.
4) If there r ultrasound markers of chromosomal abnormalities on the detailed ultrasound assessment of the fetal anatomy (such as thickened nuchal skinfold, short bones, dilated kidneys o cardiac defects).
I opt for amnio straight away since I falls under cat 1. No pt wasting time & $ on NT, Oscar, Triple test etc liao mah
Don't worry, ur gynae will sure recommend if u really need to take this test.
Peggy17 & Baby Love,
Congrats on having princess !