TTC with Severe PTSD

I lost my speical needs son to a tragic accident he was 6 years old 17 months ago. Since then I have severe mental health issues and have been hospitalized 3x times over it. I was taking meds but after our insurance suddenly dropped us, I had no access to meds so I couldn't get them and stopped cold Turkey. I figured not a big deal since I'm trying to have a baby. well the depression and anixety and flashbacks are starting to rear up again and I have no defense. I just want to have a semi functional life again with some kind of propose