Hi misty cloud,
If u do read my earlier earlier post, I skipped oscar test because I lost my first bb at week 15 plus due to bb brain defects. And this can be detected as early as week 11. But I waited till week 12 for oscar test. It turned out to be the ratio result was so so bad. 1:2 for T18. While gynae referred me to do amnio at week 16.. it was a torturing wait for me!! So i found dr ananda to perform week 15 genetic scan. Indeed my bb was suffered from serious brain defects. Dr ananda told me this brain defects can be detected as early as week 11 thru nt scan.. so for this preg I decided to do alll the scans with dr ananda cos his scans are so detailed and gives u assurance that your bb ia healthy thru those precision scans.
For week 11 scan tackled the thickness of neck fluid and brain formed and skulls. No blood test unlike oscar
For week 14 scan is when bb organs are formed. This is to check the organs availability. Placenta position. Blood flow of the cord and uterus and ovaries
For week 21 detailed to check the growth of bb organs. Like hearts with normal valves, bb heart beats normal, kidneys and bb gender. length of fingers, legs, thighs. Of cos again plancenta. Cord length and thickness. Blood flow to baby. Very very detailed scan with the ratio given.
Of cos if u wanna be more assured your bb is perfectly ok. Can opt for harmony test..which I din opt for it.
I hope this wil help u.