Yes, Narcan can be used during pregnancy. In an emergency, Narcan's ability to save a life outweighs potential risks. But, it's crucial to inform medical professionals if the person is pregnant. The information helps ensure appropriate follow-up care for both the mother and the unborn child. While Narcan itself isn't harmful to the fetus, the reversal of opioid effects can cause stress. Healthcare providers can offer additional support and monitoring in these cases.