When did you smoke after giving birth?? (Weed)

So I used to smoke everyday before I got pregnant but stopped a couple weeks after I found out. (Only to ease the nausea since doctor meds didn’t work for me). Now I’m 37 weeks getting close to the end and just curious to know when you started smoking after giving birth?? I’m also beast feeding for 2-3 months so I would like to know if that would effect my baby and how to avoid her ingesting it in anyway???