Hi, I'm 30 Weeks Pregnant, And Have Smoked Pot Even

Hi, I'm 30 weeks pregnant, and have smoked pot even before i was pregnant. I continued my use throughout my pregnancy due to my terrible morning sickness and loss of appetite. I have a very high metabolism, have gained a total of 20 pounds so far, and everything with the baby is healthy and on track. I was just wondering if there was a safe way i could make sure that theres no THC in her system when shes born?