Hello, and I hope I can help you today. Botox is a medication that normally only affects the muscles that have been injected. If you do not have any unusual side effects from the medication, it is unlikely that it entered the rest of your body and could have any effect on your fertility and your menstrual cycles. The effects of Botox cosmetically persist for somewhere around three months. However, because this medication is not systemically absorbed, there cannot be any exposure to baby if you become pregnant now. The only risk would be at the time of injection, however there are no studies that have been shown that Botox is harmful during pregnancy. However, we do not recommend its use during pregnancy (meaning- not getting the injections during pregnancy) because it s effects on the developing fetus are unknown. There is no antidote to Botox topically in the skin, so you will just need to be patient waiting for the symptoms to wear off. However, because you ve not yet conceived, the Botox you use previously does not pose any risk for in impending pregnancy nor will it affect your menstrual cycle or fertility. I hope that I was able to adequately answer your question today, and that my advice was reassuring. Best wishes, Dr. Brown