CRAMPS FROM HERBAL TEA???!

I'm 11.5 wks pregnant. I've been sick with a cold and bought herbal tea. I checked the label and no where did it say unsafe for pregnancy. Well I drank like 6 cups of it since the am bc it was helping my throat. I started to notice my lower pelvic area felt werid like cramps. And it freaked me out. I grabbed the box of tea and started googling the ingredients. Hibiscus is the 1st ingredient and is horrible for pregnancy. I called the obgyn on call , I'm waiting for him to call back . I'm so upset and my stomach doesn't feel right . I'm freaking out.