I am in the process of weaning off Lexapro right now. I was on 10mg for 2 years. Now that I am pregnant, I want to wean completely, but I'm not sure if I will succeed

I started cutting my pills in half about 2 weeks ago. So far, I have been doing very well on 5 mg. Last week, I was on vacation, so I decided to experiment and see what it would be like to skip a day. Bad idea. I became completely irrational, crying all day, and full of rage. I started taking the 5 mg the next day and was fine. I'm not sure if I'm going to be able to do it. The last time I tried to wean (before pregnancy) I became suicidal.
I may have to resign myself to being on 5 mg for the rest of this pregnancy. I am also looking into starting Bach's Rescue Remedy, which I tried a few years ago, but I noticed that my body would get "used" to it, and it would not work as well as those first few times.