My mom said she took birth control before I was born, and the doctor said they don't know why I was born with birth defect.
In the old days like 1970's, most male doctors tell their female patients that they should take any kind of pills. Now, we know that any pills are not safe especially preggy mothers.
Another thing, DDT (chemcials) is involved in the old days. It was very common that the DDT company lied that it was a good health for mothers to use the spray for their indoor house or backyard. The doctors have no way to know that DDT is harmful because they do not have a computer or technology in these days. Actually, most doctors do not use their common sense. Nowadays, the DDT and FDA still lie about it.
Off subject, if you have some weeds in your backyard, you just boil hot water, and pour it on the weeds. It's because it contains no chemical. All you have to do is to use your common sense to protect our mother nature that would make us good life and best possible to reduce the harmful situation. i.e. get rid of old lead paints, rid of 1950's to 1990's old carpets, no more chemicals for taking care of lawn (no such thing about nature chemical for grass - it's all trick. Did you see some small signs that say keep off the grass? - Think about it.).
Another thing about a common birth defect, you will be surprised. Most mothers do not want to tell you the truth. My mother's sister was sick that gave my mother the measles. Why not ask your mother to make sure that they are telling the truth? Please use your common sense if anyone is sick and near a preggy mother - it is a grave zone. Sick person must get out of your house until a baby is born.
Finally, I read the news that State of Connecticut will be announced that it will ban all dentists purchasing mercury fillings for their business due birth defects.