here's a site that goes in to better detail of what teas are best and what's non herbal...like earl gray

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I drink tea a lot..I've never had a problem with camomile or peppermint...I used peppermint to ease heartburn...Darjeeling is my favorite and earl grays pretty good....

chamomile is ok.. But peppermint tea is definitely not ok.

its tea why would it do that

I read that it can cause miscarriage in the 1 trimester

yes it is