Hibiscus tea isn’t recommended during pregnancy.
Hibiscus tea is an herbal tea that has quite limited research when it comes to its consumption during pregnancy. A lot of the studies that have conclusive findings are animal studies, and of course, it’s tricky to draw definitive conclusions for humans from those. With that said, the existing research1 on hibiscus tea during pregnancy has shown a potential correlation to certain hormonal changes, so we recommend you proceed with caution on this one.
Instead of drinking hibiscus tea while you're pregnant, try peppermint, rosemary, bitter orange, and red raspberry leaf tea in moderation, drinking no more than two or three cups a day.