I am currently 35 weeks pregnant with anxiety, depression, previous mental health issues and likely undiagnosed bipolar as both my parents have it and are medicated, but my t doesn't diagnose.
I have not been on any medication in the pregnancy and my husband has been truly my main support, holding me when I cry, panic etc. I've tried to learn CBT to rationalise my thoughts and practice breathing. It has been hard, but I never thought I could do it medication free.

I have also taken up knitting and joined a pregnancy forum to keep in touch.
In my experience, Pregnancy is good as it makes you cry over things so once you cry out everything, you feel better. I know when I hit my usual lows they tend to stew and get worse so getting it all out there has been good for me. Just take each day as a step I found isn't as overwhelming.
I also see a t alongside my pregnancy.
Sorry if this hasn't helped.