How do you handle withdraw when pregnant?

Hello, now before I start I would like to say no im not a drug addict, I have servere PMDD and I was having the most unbearable mood swings and was perscribed a antidepressant to level out my hormones, I had mood swings aaaalll the time so I needed them trust me. But im 7 weeks prego and I have to wait to see a doc to be put on something safer as wht I was taking couldve killed my baby. I havnt taken them for about 2 weeks and now I am ezperiencing major withdraw. I mean like im dizzy, vision impared, shakey and alost ready to pass out. I cant go ob like this I cant function. I have a hard time eating. Cant focus (just typing this took forever) im so lost ight now, how can I ease the side effects and how long will this last? Im sorry its so long, but thank u 4 reading