Is this normal?

Essence
So, I am currently 7 weeks pregnant with my first child. Basically since I've been about 4 weeks pregnant, I've been waking up nearly everyday very early in the morning (unusual for me), but by a really bad anxiety! It wakes me up out of my sleep covered in sweat and eventually starts to make me sick to where I dry heave :( The ONLY thing that has seemed to help it (please no judgment) is marijuana. Before I got pregnant, I'd used marijuana for about 9 months almost daily. I'm trying very hard to quit, but when I tried to cold turkey it made me lose my appetite and get sick for days, my doctor told me to try gradually, so I am. And just a little back info, I have had a few struggles with anxiety for about 5 years, well before I ever touched MJ. But it never woke me up out of my sleep, it was usually panic attacks over situations and it was only 2 or 3 times over a 5 year period. Okay, I kind of rambled here, but I'm just so over this random anxiety! I miss sleep lol. Do you think me trying to quit smoking is causing the anxiety? Or it's just normal pregnancy anxiety?