Preferably none. No one can say EXACTLY when the unborn child begins to take damage. And considering what's at risk, it seems really, really irresponsible to accept that risk.
No it may not. It can however lead to many many birth defects.
You cannot determine the units of alcohol just from the quantity of the total vodka.Generally vodka has 40% alcohol in it.
No. Many pregnant women do have "morning sickness", but many women have no symptoms.
you will need about 3 - 4 for men and for women it is 2-3
A standard serving of 15 alcohol wine typically contains about 1.8 units of alcohol.
There are 3 units of alcohol in a 750ml bottle of West Coast cooler
There are many places where you can buy vitamins for pregnant women. One great place is gnc.com which stocks many vitamins for pregnant women.
2-3 units a day
It is a very controversial question, but it generally seems like a drink per day (~10g pure alcohol) is recommended, less for young people and none at all for pregnant women. Wikipedia's Long-term effects of alcohol article has it a little higher, though - it mentions 2-3 units (~16-24g) per day.
A 20-ounce beer typically contains about 2.5 units of alcohol.
1 unit of alcohol = 10 ml = 10 cc → 1 cc = 1/10 or 0.1 units of alcohol.
If you drink a lot or for a longer period of time it can be. Many women worry about getting drunk before they knew they were pregnant and that is usually not a problem.