Father hanged himself today after battling bipolar disorder with psychosis

I’m truly honestly at a loss right now. I’m 9 months pregnant and my dad was supposed to meet him. He had a previous attempt back in March and has been medicated and going to therapy since but clearly has been struggling. He called me hours before doing this and sounded very off. I have so many regrets and thoughts as I’m sure everyone does. I’m so very broken right now.