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Avoid Cannabis
Limit or stop cannabis use during preconception, especially if pregnancy is taking longer than expected. This includes smoking and vaping, since cannabis exposure has been linked to poorer sperm concentration, motility, and morphology, as well as reduced egg quality and fertility in some people.
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“If you're trying to get pregnant the fastest, if you want to have the best pregnancy outcomes, or even you want to have the best hormones you can, have longevity of your ovaries or have the best sperm counts or the most testosterone, cannabis use should not be a part of that.”
huberman · How Women Can Improve Their Fertility & Hormone Health | Dr. Natalie Crawford · Apr 13, 2026 · 1:54:57 · open ↗
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