Breastfeeding < psych medications.

I have always planned on breast feeding. 100% no questions asked. Well after a long stint with infertility and miscarriages I decided to start medication. Now with this pregnancy I was fine the first few months going off them. However as my pregnancy progresses I’m struggling more and more. I am now considering going on them when baby comes and using formula. Part of me feels that after how long we’ve waited I don’t want my anxiety and depression to ruin our dream all because I want to breast feed. Anyone else have to make this decision? I’d love to hear your thoughts. I haven’t decided one way or another waiting to see how I feel when the time comes.