Im 25 Weeks Pregnant And Just Found Out ... But

Im 25 weeks pregnant and just found out ... But ive smoked weed for the whole time. Of course ive stoped since I found out but I live in colorado where they drug test the mother the newborn and the placenta . I know the thc wont be in me or the babys system by the time hes born but what about the placenta ?? Will it show up still? Im freaking out cause i dont want my baby to be taken by cps.