I'm six weeks pregnant with my second child, and I drink now, and all throughout my last pregnancy, one to three cups of raspberry leaf tea per day. It's a great uterine tonifier, and one of the few herbal teas that is completely safe to consume all through your pregnancy. It also tastes WONDERFUL!! There are, of course, exceptions, i.e. if you have incompetant cervix, or are extremely high risk. In strong doses, it can cause very mild, undetectable muscle movements of the uterus (not labor contractions) but to anyone who is very high risk, and already at risk for miscarriage, those tiny little muscle movements can be bad news. That being said, things like orgasms, which doctors have deemed safe for healthy pregnant women, are a whole lot stronger than any muscle contractions caused by raspberry leaf. Also, raspberry leaf can be purchased in capsule form, at most health food and supplement stores (I work in one) and what you find in pill form is usually much more potent than what you'd brew in a tea. Most pill forms of raspberry leaf, should only be taken during your last trimester, when the uterus is preparing for labor. I took it in capsules for the last three weeks of my pregnancy, under the assumption it might help stimulate labor, WHICH IT CERTAINLY DID NOT! I ended up going ten days overdue, and delivered a nine pound baby boy by c-section. Good luck and happy tea drinking!