In my state if you come up positive for any drugs CPS gets notfied. I wouldn’t want to deal with all that billshit. I lost a baby at 5 months which I didn’t do anything wrong but of course blame myself so after that I was scared to eat or drink or do anything that would impact my unborn baby…that’s just me.
I am a daily smoker. Have been for years. Took me 9 months with my first, 9-10 months with my second and only 4 months to get pregnant this last time 
We have known people who went off to increase fertility and it helped