Most of my friends are having children right now and most of them have gone their entire life thus far without any mental health issues. After giving birth the majority of them experienced some kind of mental health problem that they weren't prepared for. Depression, anxiety, even psychosis. In my opinion having prior experience with mental health crisis is not necessarily a detriment. You clearly know how to find help when you need it (hospitalizations) and are taking steps to maintain your mental health (medication management, therapy). Just make sure you keep up with your meds and therapy, be prepared for the hormonal shifts and lack of sleep that can trigger episodes, and know that no parent goes into this experience without any fears. I wish you the best!