I am 12 weeks pregnant and have been getting Botox treatments between my eyebrows...
Although Botox has a long history of safety, there is a lack of study data on any possible effects of Botox on a developing fetus when it is administered to women who are pregnant. According to Nancy Grondhuis, Principal Medical Information Specialist at Allergan, the company that manufactures Botox, the standard recommendation is to avoid Botox injections in women who are pregnant or lactating since definitive data is not available.
Your treatment with Botox does not represent a medical necessity, and I would recommend discontinuing its use until the pregnancy, lactation or any other circumstance with the potential for transmission to your baby is finished. Before resuming treatment, you might want to further discuss this with your plastic surgeon and obstetrician.