Is marijuana bad during a pregnancy?

Smoking marijuana when pregnant can cause early delivery smoking anything while pregnant will harm the baby's brain,look,height ect....

Actually, according to many studies, scientists cannot prove or disprove if marijuana is harmful for an unborn baby. Studies on this subject were very biased and/or inconclusive. The studies all gave varied answers. In fact, many studies actually show that children who had been exposed to marijuana while still in the fetus actually scored higher on their IQ tests than those children who were not exposed to marijuana. The main point is - science cannot conclude whether marijuana is actually harmful or not for a baby still in the womb.

Also, the person who gave the above answer should learn to do her research and also learn to spell. No one is going to take your answer seriously if you cannot spell the Word "pregnant," let alone correctly spell the Words "when" and "height."