Hi Emelie!
Medicube does not explicitly mention whether it is safe to use during pregnancy, even though this method (which is localized to the face) is generally considered safe, there are no specific guidelines for pregnant or breastfeeding individuals. No Beauty Techs/Devices are tested on pregnant individuals, so there is nothing concrete to rely on as it is not ethically okay. It is best to consult a doctor before potentially using devices that apply electrical currents to the skin.
Wishing you a continued lovely day 🤗