Although exposure at any time prenatally is potentially harmful,the baby is most vulnerable to the effects of teratogens:

Question

Quizplus · Accepted Answer

During the first 2 to 3 months of pregnancy, the baby's major organs are developing and are thus most vulnerable to the harmful effects of teratogens. After this period, the organs and systems are more fully formed, so the risk of major structural damage decreases. However, exposure to teratogens later in pregnancy can still have negative effects on the baby's functioning and development.

Although Exposure at Any Time Prenatally Is Potentially Harmful,the Baby