@mariebraendle1016 we really don't know. there isn't enough research to say :/ at least not that I know of...
Most plastic surgeons and dermatologists will not give you botox if they know you are pregnant. We are starting IVF with my next cycle and my docs said that they will not administer botox too close to the date of an embryo transfer. They recommended at least a month between the injection and getting pregnant.
As Nancy said, there really is no research on this, so many doctors differ in their opinion.