To Smoke or Not to Smoke...

Hey Mama's this is my 4th pregnancy(11 yrs old, 9 yrs old, & MC). My hubby & I have been TTC for 3 yrs now & it's FINALLY happened(4w5d), yayy!! (: Anyhow, I didn't start smoking MJ until about 3 yrs ago & was able to get off of 5 medications in replacement of it. I'm so excited to be pregnant but am having awful anxiety about thinking about if I should stop or not during this pregnancy...it helps w my anxiety & chronic back pain. How often do you Mama's smoke? Do you use carts still or stick to flower? Should I stop at a certain Gestational Age? I'm going to ask my OBGYN all these questions as well but wanted to get y'all opinions as well. (: