Smoked marijuana before finding out

I smoked marijuana at 7 weeks in my pregnancy, but once I found out I was pregnant I quit , will it still be in my baby's system when I have him in July 2018 ? worried I didn't know I was prego but I stopped for good . just worried it will be in my baby's system July 2018 , and they will take him away from me . what do y'all think . put my soul to rest , I'm really worried I anit wanna get my baby token away