What causes before pregnancy poisoning and pregnancy poisoning?

Home questions and answers that cause poisoning before government and pregnancy poisoning? What causes before pregnancy poisoning and pregnancy poisoning? What causes under the protection of the question before pregnancy poisoning and pregnancy poisoning? The answer is the fine reasons for poisoning before pregnancy and unknown pregnancy poisoning, although there are researchers who are suspected of malnutrition, high body fat or confusion in the blood flow to the uterus as possible reasons.