smoking- 5 weeks & 4 days

So just wanting to know people's story's on pregnant and smoking cannabis? So I found out last week I was pregnant and I'm heavy smoker with weed and always have been and of course theres been 4 first weeks I've been smoking It everyday without knowing I'm pregnant, I just wanted everyones opinions or any facts on the pros and cons, it's helping me sleep and eat and be less stressed but I am constant worrying just in case it's doing harm to the baby?