Hii I Have A Question I Smoked Pot Almost My

hii i have a question i smoked pot almost my whole pregnancy cus i didnt know i was pregnant till i was like 24 weeks i stopped immediately after wards im a thin girl but im 33 weeks & 4days now havent smoked the whole mnth of may the last 2 weeks of april & none so far this month. i drink alot of water but i needa... drink more tho im getting drug tested at the hospital im having my daughter @ & there going to test the plancenta & baby poo do u think ill pass or no