I suggest that you find a way to continue with your current job by learning how to manage your feelings. When you do this you'll have gained a skill that will be extremely beneficial for the rest of your life.
I make this suggestion based on my own experience. I took a leave of absence because I hated my job so much. I learned that every other job I could have had equal tho different draw backs and the one I was considering leaving had more positives then negative when compared to the ones I found while on my leave.
I went back to my first job and went back into counseling. One book that helped me tremendously was "What to Say to Yourself When You Talk With Yourself." I worked on this idea for several months before I started feeling less angst over my job. I found some other articles with similar ideas. It was worth the work. I stayed with my job, felt success, and have a great retirement now.
I'm also a much happier person. I've been thru some difficult times since retirement. I was still able to maintain perspective and look forward to better times in a better way than I would've been able to if I'd not stayed with my job and focused on learning how to ignore people even tho they were irritating.
I agree that it's best to stay until you take a leave for the baby's birth. You may find that with the new baby, you'll want to focus on the baby instead of a new career. Because a baby is such a big change I suggest that it's not wise to make any other big changes if they're not necessary.
You can make the work situation tolerable by focusing on things other than work. Ignore those irritating people. Force yourself to think about something else and repeat happy thoughts. Do not dwell on your critical thoughts. Remind yourself that they are just a very small part of your life. You can stand them for now because you do have a long range goal that you will be able to reach at a later time.
Later: I read your previous posts. Why are you allowing these women to have control of how you feel? You describe them as being rude and disrespectful. Your response to them also sounds rude and disrespectful.
You can be a better person than they are. And you can have control over how you react to other people. Please take control of yourself and your responses. You'll feel so much better about life in general if you take back your power.