Smoked three times in 2 trimester

Ok so yes I know you will bash me.. So be it. The headaches the pains.. I was never a Tylenol kind of girl still don't like the idea now especially being pregnant . Along with the stress I have broken down at least three times in my second trimester.. I smoked greens

It hasn't been throughout my whole pregnancy... Since I quit from the time of find out this is the first. What harm have I done????