Is it safe to take 1500 mgs of tylenol during pregnancy?

I'm 20 weeks pregnant and I've had a cold with a bad fever and I took some tylenol but I misread the bottle. It said 500 mgs on the back of the bottle and I thought that it meant 500 mgs per dose but I got to looking and it says 500 mgs per pill. I took 3 once, for a total of 1500 mgs, is that dangerous for my baby?