Botox should be avoided during pregnancy and breastfeeding as a precaution

https://www.scribd.com/document/1008600723/Botox-Wrinkle-Relaxing-Treatment-What-Happens-During-the-Procedure-177531

Botox should be avoided during pregnancy and breastfeeding as a precaution, and used with care in patients with certain neuromuscular disorders under physician guidance.