Marijuana during pregnancy

So I know I might get A LOT of back lash for this but I honestly want to know...
I just found out I am pregnant (super happy, been trying for over a year now) I am about 6-7 weeks pregnant. 
Before being pregnant I use to smoke everyday if possible. But since finding out I have only smoked twice due to having terrible vomiting, diarrhea and nausea. 
I am thinking of stopping because I just want to be cautious, at the same time I want to continue ONLY for when I feel sick. 
So, what do you ladies think regarding this issue?  (Please TRY to be nice, we are all adults here and deserve respect)