I Am Stupid And Ate Marijuana Cookies Every Night For

I am stupid and ate marijuana cookies every night for morning sickness and pain until 26 weeks of pregnancy in TX. I kept being told by friends that it would be fine but now I am scared my baby will not be clean when I give birth via C-section. Is there any way to get it out of my babys system before birth to avoid CPS? I will of course be clean by then but what about my baby? I know I made the wrong choice now...I just want to know how to fix it and move on.