There are many potential negative health effects from using marijuana and other products containing THC during pregnancy and while breastfeeding. In fact, the U.S. Surgeon General recently advised consumers that marijuana use during pregnancy may affect fetal brain development, because THC can enter the fetal brain from the mother’s bloodstream. The Surgeon General also advised that marijuana may increase the risk of a newborn with low birth weight. Research also suggests increased risk for premature birth and potentially stillbirth 1 .
FDA strongly advises against the use of cannabidiol (CBD), tetrahydrocannabinol (THC), and marijuana in any form during pregnancy or while breastfeeding.
What do we know about the effects of marijuana use during pregnancy and while breastfeeding?
We also know that there is a potential for CBD products to be contaminated with substances that may pose a risk to the fetus or breastfed baby, including THC. We have also heard reports of CBD potentially containing other contaminants (e.g., pesticides, heavy metals, bacteria, and fungus); we are investigating this.
While breastfeeding, it is important to know that breastmilk can contain THC for up to six days after use. This THC may affect a newborn’s brain development and result in hyperactivity, poor cognitive function, and other long-term consequences.
Cannabis is a plant of the Cannabaceae family and contains more than eighty biologically active chemical compounds. The most commonly known compounds are THC and CBD. One type of cannabis plant is marijuana, which contains varying levels of THC, the compound that produces the “high” that is often associated with marijuana. Another type of cannabis plant is hemp. Hemp plants contain extremely low amounts of THC. CBD, which does not produce a “high,” can be derived from either marijuana or hemp.
What to do? Studies suggest talk therapy, light therapy and making sure you take care of yourself can help alleviate your feelings. Share how you feel about with your practitioner, and don’t take any medications without her okay. Some antidepressants are safe for use during pregnancy.
Don’t be alarmed if you sipped a CBD-spiked soda before learning you’re pregnant, however (but do mention it to your practitioner). Though there is evidence that the active ingredients in marijuana can harm a developing baby, the existing research has looked mainly at repeated, regular pot use among pregnant women.
Studies show that marijuana use during pregnancy can lead to smaller babies with a lower birth weight and other unwanted outcomes.For that reason, the American Academy of Pediatrics (AAP), ACOG and the U.S. surgeon general all warn pregnant women not to smoke or vape marijuana or use any byproducts.
Moodiness, irrational fears and crying fits can hit when you least expect them, even if you’re thrilled about your pregnancy. Surging hormones, your changing body, social isolation and lack of sleep can all conspire to make you feel worried, stressed or down.
No matter how exhausted you feel, don’t take any sleep aid — including herb teas or “natural” supplements — without consulting your practitioner.
Nonetheless, CBD oil is a new and largely unregulated market. There are scores of case reports of products marketed as “pure” CBD contaminated with substances you want nowhere near a growing baby, including THC, pesticides, toxic metals and bacteria.
If these and other drug-free queasiness cures don’t do the trick, ask your doctor about prescription medication for severe nausea. And remember — there is no evidence that marijuana in any form is helpful with morning sickness.