I would not. Hookah still has nicotine. I am also a firm believer that people should not smoke cigarettes while pregnant as well. I know back in the day people would drink & smoke when pregnant buuuut I'm all about preventing exposure to those things to my baby while in the womb. My husband smokes cigarettes like a chimney and I told him he won't even be allowed to carry our baby after smoking. Apparently even the smoke RESIDUE on your fingers & clothes & walls as well as the second hand smoke can cause an increase in sudden infant death syndrome after the child is born.
Since you're almost done with your pregnancy, I'd just wait. Smoking of any sorts obviously isnt the most wise decision, but women still do it and have healthy babies. It's up to you whether you wanna risk it or not.