Zoloft and pregnancy

So before I got pregnant, I was taking 50mg of Zoloft. My OB told me that at any time I felt like I needed to, I could take two at a time and up it to 100mg if need be. But ever since I got pregnant, my hormones are unbearable. I have horrible thoughts and I have too many manic episodes. So I’m sticking with 100mg. I think the highest dosage you can get with that is 200mg but I don’t think I’m that desperate yet. I just can’t deal with these hormones. Would he prescribe extra stuff if I talk to him about it at my first appointment? Suddenly I feel like my life revolves around this pill bottle because they’re not helping.