The use of Lysergic acid diethylamide (LSD) and other Hallucinogens seems to be linked to an increased risk of miscarriage. There may also be a higher incidence of birth defects among babies born to women using LSD.
It is recommended that women check with their doctor (or other health professional) if they are using or planning to use drugs while pregnant or breastfeeding, including prescribed and over-the-counter medicines.