Need to Get THC Out of my System!!!! Help!!

Hi ladies. I’m currently 10 weeks pregnant with my first baby. I used to be a heavy pot smoker. I was high pretty much all day every day for a year. However, I stopped smoking weed cold turkey the day i found out i was pregnant. However, i didn’t know i was pregnant until i was about 4 or 5 weeks along. I went for my ob appointment a couple days ago and they told me I tested positive for THC... it is not legal where i live. They call CPS into the hospital if the mother tests positive for drugs of any kind after giving birth. I haven’t taken even a hit of weed since i found out I’m pregnant but it’s still in my system. Do any of you ladies have experience with this? The weed will definitely be out of my system by the time i give birth, right? TIA