Being pregnant and bipolar

I had a miscarriage last year... so I’m lucky and I appreciate every single moment even the throwing up, I feel lucky to being able to experience it.. but I’m also bipolar which makes me feel guilty when I’m at my lows. My mind and emotions are constantly zooming up and down.. My doctor lowered my medication and I use to smoke week to help also but now I don’t smoke or even take cbd. I can’t take my medication that helped me sleep or much of the medication that stabilizes my mood. Every time I cry I feel so guilty. Plz tell me I’m not the only one who has felt this way or can understand