truthfully, i smoked until i was about 6 1/2 months. throughout my pregnancy i had terrible morning sickness that would leave me dry heaving so bad i couldnt breathe, i couldnt hold down food so i would smoke a little before going to bed and would wake up and feel okay and it also allowed me to sleep. My doctor even told me that if it helped to continue doing so, though with it still being illegal in Indiana she couldnt legally tell me to or prescribe it, but she was all for women smoking, vaping, whatever because it helps so much.
There's been no link between marijuana causing harm to a pregnant mom. However, the baby and you will be drug tested. And then you'll have the state involved. Not worth it.