Dixienormas/itsnotmeitsyou
The research and reviews are publically available for anyone's perusal, the naysayers statements are also available for any clear headed analysis to very quickly see through.
You can research it yourself, anywhere you like, although to be honest, you clearly have your own reasons for simply not wanting to know the truth.
Here is part of the University of Washington review to start you off. But really, this is just a random review from the thousands available.
^Can marijuana use affect pregnancy?
THC (delta-9-hydrocannabinol), the psychoactive ingredient in marijuana, is known to pass from the mother to the developing fetus through the placenta. This means that the fetus is affected by any amount of marijuana taken by the pregnant woman, placing it at a greater risk of complications occurring. The effect of the passive inhalation of marijuana as a result of breathing in the smoke of others is not quantified, but should be avoided.
Any form of smoking can disrupt the supply of oxygen and nutrients to the fetus, which can result in restrictions in the growth of the fetus (including overall length, foot length, head size and body weight), and in rare cases premature birth, miscarriage and stillbirth.
Can marijuana use affect the baby?
There is some evidence that women who use marijuana during pregnancy are more likely to give birth to babies with lower birth weight, delayed commencement of breathing, an increase in features similar to those found in foetal alcohol syndrome, exaggerated startle response, tremors, poorer eye-sight, poorer ability to adapt to new aspects of the environment, and a "hole in the heart" (ventricular septal defect).
Other studies have found that in the first six months of life, babies who have been exposed to marijuana in utero are also at greater risk of developing asthma, chest infections, and other breathing problems such as wheezing.
Research suggests that, at ages three to four years, children of mothers who used marijuana while pregnant have poorer verbal, memory and reasoning ability; poorer motor skills and shorter length of play; and are more likely to be fearful, impulsive, inattentive, hyperactive and delinquent. These difficulties appear to persist to age 10 years, when they may be accompanied by increased depression and anxiety, along with reading and spelling problems and general underachievement at school. Such deficits may also continue into adolescence and early adulthood, along with an increased risk for initiation of tobacco and marijuana use.
In addition, there exists some evidence that mothers’ marijuana use during pregnancy increases the risk of their children developing childhood cancers, including non-lymphoblastic leukaemia, rhabdomyosarcoma (a rare, highly malignant tumour that can occur anywhere in the body), and astrocytoma (a type of brain tumour).^